Adults

The Caden MIPS II offers a sophisticated style with advanced head protection technology, making it a perfect match for your on-the-go lifestyle. A sleek In-Mold shell helps keep Caden lightweight, and the Roc Loc City MIPS fit system makes fit and feel adjustments almost effortless. Inside the helmet, MIPS technology can help to reduce rotational forces to provide more protection in certain impacts. Thoughtful details include reflective accents, a lock port for securing the helmet with your bike or a bag when you're on the move, and a TPU cycling cap-style visor that accents your style without compromising ventilation.

The women's Radix MIPS helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight, and ventilation riders need to ride comfortably and confidently, all day. The Radix MIPS helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. Visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our in-mold construction process, to enhance durability and ventilation without excess bulk. - Construction: Full-wrap in-mold polycarbonate shell with EPS liner - Sport: Cycling - Number of vents: 25 - Ventilation type: Wind tunnel vents with internal channeling - Fit system: Roc Loc 5.5 MIPS

The Agilis W MIPS offers assured style and performance for women, with a sleek silhouette, airy design, and MIPS technology. The Agilis MIPS W is the right choice for women looking for a helmet that combines airy design with slightly deeper coverage and a host of performance features aimed at road and multi-surface riding. The fit is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. The fit is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. Specs: - Impact Management: Integrated MIPS - Construction: In-mold construction, Four-piece Polycarbonate Interlocking Hardbody Shell, Full Hardbody Wrap - Ventilation:Wind tunnel vents with internal channeling - Fit System: Roc Loc 5.5 MIPS - Weight: 300g (Size Medium CPSC); 280g (Size Medium CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older E.U.: CE EN1078

The Radix MIPS W helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, light weight, and ventilation riders need to ride comfortably and confidently all day. The Women's Radix MIPS W helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our In-Mold construction process, to enhance durability and ventilation without excess bulk. Specs: - Integrated MIPS - Construction: In-mold polycarbonate shell with EPS liner - Ventilation: Wind tunnel vents with internal channeling - Fit System: Roc Loc 5.5 MIPS - Weight: 316g (Size Medium CPSC); 300g (Size Medium CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older, E.U.: CE EN1078 - Highlights: P.O.V. Adjustable visor, Quick dry padding, Slimline webbing

PERFORMANT! Dripping with the same style and class of our top-end Z1 helmet, the Blade+ helmet combines great looks with high performance. This is the helmet you wear on your weekend rides and your daily commutes. Its narrow shape combined with the Advanced Rollsys retention system provides an excellent fit and great adjustability. It has 22 vents to keep you cool and the weight is kept down to make sure you can fly down the road in comfort. The Blade+ comes with a bottom shell to provide a clean finish and additional impact protection. The integration of the low-friction MIPS layer adds protection against rotational impacts, making safe even safer! - Advanced Rollsys system - Lazer Aeroshell compatible - Rear LED light compatible - Lazer LifeBEAM compatible - Premium features - MIPS layer - Fit System: Advanced Rollsys System ARS - Construction: In-Mold - Ventilation: 22 Vents - Weight: 265g (XS) - Certification: CE-CPSC-AS

Conquer with confidence. Give yourself the confidence to crush it. Whether you’re making the crux move on a technical climb or bombing down the mountain on steep, rocky terrain, you need full protection to perform at your peak. The new Rail SX was developed to meet the demands of the Giant Factory Off-Road Team’s pro enduro riders. It features an integrated MIPS Brain Protection System, and a lightweight, highly ventilated design to keep you comfortable and in control when you’re pushing your limits. FEATURES - Trail-specific maximum enduro coverage EPS construction; 3mm lower (Front), 3-5mm lower(sides), 8-10mm lower (back) - MIPS Brain Protection System optimized design - AirFlow ventilation combines 18 straight vents with straight, non-tapered walls to guide airflow through deep internal channels to keep riders cool at variable speeds - Removable moto-style extended protection visor mounts cleanly to the sides and is infinitely adjustable on the move - Integrated strap clip on the rear keeps goggle straps in position and prevents them from falling off during a crash - Low-speed and high-speed impact-tuned construction with Direct Support vents, optimized low-density EPS, and ultra-thin toughened polycarbonate shells all in-mold bonded together - Element Strap System (ESS) brings together Cinch One Pro fit system, adjustable locking dividers, and LiteForm webbing into one fit and retention system for superior fit and comfort right out of the box - Cinch One Pro fit system offers 360-degree coverage and positioning with secure, adjustable height for full protection, support and comfort - Lightweight LiteForm webbing wraps around for a more secure fit - TransTextura Plus anti-microbial padding helps fight bacteria growth by pulling sweat from a rider’s head and transferring it through the AirFlow vents. The natural property of the fabric inhibits microbes that cause odors - Dual-position integrated mounting surfaces, GoPro™ curved mount compatible for cameras and the new Giant Recon light system SPECIFICATIONS - Western: S (51-55cm);M (55-59cm);L (59-63cm) - Weight: 360g (size M, CPSC/CE) - Certifications: CPSC/CE;AS/NZS

For maximum safety, the Viantor has the ActiCage structural reinforcement integrated into the EPS. It provides maximum protection while ensuring optimal ventilation and extreme comfort. - ActiCage allows for large ventilation openings without compromising the helmet's safety - Multi Shell In-Mold for durable bonding of multi-part outer shell and shock-absorbing helmet material (EPS) - Good ventilation with 4 air inlets and 14 air outlets connected with flow channels - Zoom Ace fit system with a non-slip adjustment wheel - Semi-enclosing plastic ring connected to the adjustment system for optimum stability and fit - Ponytail-compatible and well suited for braided hairstyles Sizing: - Small: 51 – 55cm - Medium: 52 – 58cm - Large: 58 – 63cm

Stylish, affordable, MIPS™ trail helmet The Mainframe MIPS™ Helmet gives you exactly what you're looking for in an affordable helmet: proven safety features combined with easy trail steez. Featuring extended coverage to protect more of your noggin', the proven MIPS™ impact protection will keep your brain safe in the event of a crash by absorbing and redirecting energies and forces that could otherwise damage it. With a lightweight fit system, the Mainframe MIPS Helmet will also keep you cool, and should the sweat stank builds up, you can easily whip the moisture-wicking liner out and run it through the wash. Great protection at a price that'll save your wallet undue stress. - Proven MIPS™ impact protection system reduces rotational forces in a crash - Extended coverage for added safety - Optimized venting with channeled, in-molded EPS provides efficient cooling - Removable, washable moisture wicking liner - MIPS™ integrated fit system reduces weight and provides a more comfortable, seamless fit - Weight: 390 g, medium - EPS, PC, PA, polyester

- Proven MIPS impact protection system reduces rotational forces in a crash by absorbing and redirecting energies and forces otherwise transmitted to the brain - Extended coverage for added safety - Optimized venting with channeled, in-molded EPS provides efficient cooling - Removable, washable moisture wicking liner - MIPS integrated fit system reduces weight and provides a more comfortable, seamless fit - Weight: 390g (Size MD)

The MET Echo MIPS is an entry-level MTB helmet high in quality and protection. It’s a perfect choice for those who are just beginning their adventures on the trails. The construction of the helmet offers the same technology and safety, with increased coverage around the back of the head. Featuring the MIPS-C2 brain protection system, the Echo is able to slide against the head in the case of a crash, redirecting damaging rotational motion. - In-mold polycarbonate shell with EPS liner - Fully polycarbonate wrapped EPS liner enhances durability - Extended head coverage for more thorough head protection - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - MET Safe-T Mid Fit System - The 360° head belt reduces pressure points on the perimeter of the head - The removable visor with hidden anchors ensures maximum versatility - Hand washable comfort pads - Straps with an adjustable divider provide a customized fit - 14 vents are internally engineered for air channeling to improve ventilation and comfort - Reflective rear sticker - Certifications CE; AS/NZS Sizing: - Small/Medium = 52 – 57cm - Medium/Large = 57 – 60cm - Large/X-Large = 60 – 64cm

The Hyban 2.0 combines a particularly robust, hard shell with huge air intakes. In combination with the bright, integrated LED rear light, the Hyban 2.0 is the perfect everyday helmet for the city. - ABS hard shell: Robust helmet made of EPS foam and injection molded outer shell - High visibility: High visibility due to reflectors - Bug mesh: Full protection from insects - Ponytail compatibility: Perfect fit for people with long hair - Full-ring: Adjustable ring connected to adjustment system enclosing all of the head - Excellent ventilation with 5 air inlets and 8 air outlets - Zoom Ace Urban: Finely adjustable adjustment system with handy adjustment wheel for a customizable fit - Large, high-mounted, and integrated LED taillight with 180° visibility Sizing: - Medium: 52-58cm - Large: 56-61cm - X-Large: 58-63cm

Flight Helmet from Fox Racing.

The MET Downtown MIPS is a truly modern touring helmet, ready for a weekend trek or the daily bicycle lane. The internal air-channeling and large number of vents provide exceptional ventilation. The 360° head belt and lightweight design ensures that there will be no pressure points on the skull. Featuring the MIPS-C2 rotational management system, the Downtown is able to slide against the head in the case of a crash, redirecting damaging rotational motion. MIPS is engineered to add extra safety to the standard construction of helmets in case of certain impacts. The MIPS Brain Protection System (BPS) is attached inside the helmet, between the comfort padding and the EPS. - In-mold polycarbonate shell with EPS liner - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - Safe-T Twist 2 Fit System - 360° head belt and vertical adjustments offer a customized fit - Straps with an adjustable divider provide a customized fit - Reflective rear decal to enhance visibility - 17 vents are internally engineered for air channeling to improve ventilation and comfort - Comfort pads are hand-washable - CE; AS/NZS; US Sizing: - Small/Medium = 52 – 58cm - Medium/Large = 58 – 61cm

MET Miles MIPS is a touring helmet with road spirit. It has a comfortable shape and plenty of vents to enhance air flow. Featuring the MIPS-C2 brain protection system, the Miles is able to slide against the head in the case of a crash, redirecting damaging rotational motion. MIPS is engineered to add extra safety to the standard construction of helmets in case of certain impacts. The MIPS Brain Protection System (BPS) is attached inside the helmet, between the comfort padding and the EPS. The unique 360° head belt ensures that there will be no pressure points on the skull, allowing you to achieve the perfect fit. - In-mold polycarbonate shell with EPS liner - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - Safe-T Twist 2 Fit System - 360° head belt and vertical adjustments offer a customized fit - Straps with an adjustable divider provide a customized fit - Reflective rear decal to enhance visibility - 18 vents are internally engineered for air channeling to improve ventilation and comfort - Comfort pads are hand-washable - Reflective rear decal - Certifications: CE; AS/NZS; US Sizing: - Small/Medium = 52 – 58cm - Medium/Large = 58 – 61cm

- Direct Flow Cooling guides airflow into ultra-deep internal channels optimizing ventilation at high and low speeds - Moto-style extended protection visor is infinitely adjustable and removable - Integrated goggle strap retainer helps goggles stay in position - Low and high speed impact-tuned construction with optimized EPS density, and super-tough polycarbonate shell - ESS brings together CINCH Pro, Optimal Position Y, and LiteForm webbing for the best straight-out-of-the-box fit and comfort - TransTextura PLUS X-odor anti-microbial pads - MIPS is a low friction layer between the head and the helmet that provides added protection with respect to angled impacts - Women's

DETAILS Premium Style for Recreational MTB How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader. FEATURES - INTEGRATED MIPS® BRAIN PROTECTION SYSTEM — All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips®-equipped helmets is to reduce rotational forces while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts. Learn more about Mips in the video above. - IN-MOLD CONSTRUCTION — In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets. - ROC LOC® SPORT FIT SYSTEM — The Roc Loc® Sport fit system offers easy one-handed operation with a 7cm adjustment range. Its confident clicking feel and sound lets riders know that the helmet is adjusting to a comfortable fit. With comfort similar Roc Loc 5 and ponytail compatibility, the new Roc Loc Sport fit system brings premium function to sport level helmets. - REFLECTIVE DETAILS — Reflective Details enhance visibility at nighttime or in low-light conditions when illuminated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. - UNIVERSAL FIT™ SIZING — Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. By developing proprietary shell sizes based on specific customer groups, and combining them with an easily-adjustable fit system, it's easy for you get the right fit, straight out of the box, without the hassle or expense of trying multiple sizes. HIGHLIGHTS - Quick-dry padding Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

FOR OFF-ROAD ADVENTURES An ideal off-road helmet for the first rides on uneven terrain. The MoTrip promises a high level of comfort for your rides over hill and dale. The deep fit of the MTB helmet ensures the best possible protection for the head. To make off-road rides more comfortable, the MoTrip is also equipped with the MTB adjustment system. This enable both individual size adjustment and height adjustability using the adjustment wheel at the back of the head. This is a great advantage for ponytail wearers, as they can make room for a ponytail by adjusting the height. Go on off-road adventures with the lightweight and well ventilated bike helmet or alternatively wear it for commuting. - In-Mould for a permanent bond between the outer shell and the shock-absorbing helmet material (EPS) - Zoom Ace MTB: Height-adjustable adjustment system to fit the head circumference - Ponytail compatibility: Helmet well suited for ponytail wearers - Adjustable strap divider - Height-adjustable visor - Ventilation: excellent ventilation through 6 air inlets and 8 air outlets

The Fixture MIPS brings confident mountain bike style and breezy ventilation together in a compact design that complements nearly any ride -- especially when there's dirt under tread. Some of Giro's best features, like In-Mold construction coupled with the ease and comfort of their acclaimed Roc Loc Sport fit system, offer the versatility you need to ride everything from fire-road adventures to swooping singletrack trails. The Roc Loc also is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts.

Top-level mountain biking styling at a value price with all the features needed to conquer fire road adventures and swooping singletrack trails. Premium Style for Recreational MTB How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader.

Top-level mountain biking styling at a value price with all the features needed to conquer fire road adventures and swooping singletrack trails.

Top-level mountain biking styling at a value price with all the features needed to conquer fire road adventures and swooping singletrack trails. Premium Style for Recreational MTB How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader.

The Quarter MIPS is one of the lowest-profile helmets we've ever made, and it's also the lightest we've made with an ABS shell. The essentials are here—an EPS liner for impact management, a tough outer shell, riveted webbing anchors, and plush, sweat absorbent pads that are easy to swap for dialing in the fit. Another standout feature—the polyurethane coating helps to protect the EPS liner from daily wear and tear. Plus it's available in a bunch of great colors and three Super Fit sizes. This Quarter MIPS features the Multi-Directional Impact Protection System, which we believe can redirect energy and provide more protection in certain impacts.

The Trella MIPS offers a comfortable fit, with deep coverage and open ventilation in a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability that stands up to everyday use. The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets. - Universal One Size

Designed for recreational riders, the Compact DLX MIPS holds the Virginia Tech 5-star "Best Available" protection rating. The helmet includes 20 airflow vents with integrated insect netting, a MIPS layer, and a rear LED light to give you extra confidence as you cruise around town. A refreshingly lightweight option for the recreational cyclist, the MIPS layer gives you extra protection for when the unexpected happens. Awarded the esteemed Virginia Tech 5-star "Best Available" protection rating, you can trust that the Compact DLX MIPS is a great choice for your head. The TS+ Fit System adjusts vertically and horizontally to keep the helmet secure on your head over any bumps in the road or trail. On sunny weekend pedals, the visor will keep you from squinting and the 20 airflow vents integrated insect netting will cool you down. For evening pedals, reflective details and an included rear TS+ LED light keep you visible. The Compact fits everyone, so whether you are sticking to paved paths or venturing onto gravel and dirt trails, this helmet will help protect your head so that you can focus on the adventure ahead! Specifications: WEIGHT: 325g MATERIAL: EPS Foam, Polycarbonate, Nylon FIT SYSTEM: Turnfit+ System (TS+) VENTILATION: 20 ROTATIONAL PROTECTION: MIPS CERTIFICATION: CPSC ACCESSORIES: LED Taillight Features: Adjustable Head Basket Allows the back part of the retention system to be adjusted up and down depending upon your preference and comfort. The nylon ratchet system can be pushed high and out of the way, or low for a feeling of increased security. Insect net Netting on the helmet's front vents prevents bugs from getting inside the helmet and disturbing your ride. Rear LED Light Rear LED light is integrated into the helmet to improve your visibility from the rear in low light conditions. MIPS layer The Multi-Directional Impact Protection System (MIPS) helps reduce the risk of rotational brain injury by isolating your head from the rotation of the helmet shell in the event of an impact. Turnfit Plus system (TS+) A unique fit system which prevents hotspots or pressure points by making the adjustment around the entire circumference of your head. Unisize One size fits all. The helmet shell and fit system is designed to accommodate a wide variety of head sizes and shapes. 5-star protection rating The Virginia Tech impact testing uses the STAR evaluation system to determine the helmet's ability to reduce linear acceleration and rotational velocity of the head resulting from a range of impacts a cyclist might experience. 5-star indicates the "Best Available" rating possible. Virginia Tech recommends the use of any 4- or 5-star rated helmet.

The Vasona MIPS helmet combines sleek, lightweight design with an integrated Multi-Directional Impact Protection System (MIPS) that can redirect energy and provide more protection in certain impacts, giving you the latest in head protection on the road or trail. Made in a comfortable, Universal Fit women's size with Giro's adjustable Roc Loc Sport fit system, the Vasona's fit can be custom-tuned with a simple turn of the dial to make fitting fast and hassle-free. And with a range of colors to suit almost any style, you can choose exactly how your on-bike style comes together.

Giro created the Bronte MIPS for riders in search of the renowned Giro fit and in need of an extra-large size. Inspired by the sleek style and cooling ventilation of the Register helmet, the Bronte MIPS is at home on pavement or the trail. In-Mold construction is used to make it light without compromising durability, and the acclaimed, adjustable Roc Loc Sport MIPS system makes it easy to custom-tune the fit for comfort and stability. An integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts, ensures that you get the latest in head protection technology.

The Quarter is one of the lowest-profile helmets we've ever made, and it's also the lightest we've made with an ABS shell. The essentials are here—an EPS liner for impact management, a tough outer shell, riveted webbing anchors, and plush, sweat absorbent pads that are easy to swap for dialing in the fit. Another standout feature—the polyurethane coating—helps to protect the EPS liner from daily wear and tear. Plus it's available in a bunch of great colors and three Super Fit sizes.

The Register MIPS helmet combines sleek design and lightweight construction to match your style, on the road or trail. Made in a comfortable Universal Fit size with Giro's convenient Roc Loc Sport fit system, the Register MIPS adjusts with a simple turn of the dial so you can tune the fit in seconds. A range of colors lets you choose exactly how your on-bike style comes together. Register MIPS models also have an integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts.

The FeatherWeight features In-Mold technology to make a custom shape and fit utilizing a thin outer shell that covers and protects high-density EPS foam. - High density EPS in-mold construction - Tested and certified for CPSC and EN 1078 standards for bicycle use - Two sets of padding included for custom fitting - Crow rivets and 10 flow-vents to keep cool - Small/Medium = 50 – 56cm - Large/X-Large = 58 – 61cm

- Created for the performance rider who is seeking a professional riding experience - Designed from the beginning with ace aerodynamics applied for maximum ventilation with minimal construction - Strategically placed aerovent ports optimize airflow through the helmet, which improves aerodynamics and adds head-cooling ventilation - Element strap system (ESS) brings together Cinch Pro, Optimal Position Y, and Liteform webbing into one fit and retention system for superior fit - Low and high speed impact-tuned construction with optimized low-density EPS, and an ultra-thin toughened polycarbonate shell