gpx s 300 helmet sizes

With a removable eye shield and a sleek, compact design informed by wind-tunnel testing, the Giro Air Attack Shield bike helmet is a highly aerodynamic helmet for all-around road riding. Magnetically fastened polycarbonate eye shield is made by Zeiss optics and provides a clear, unobstructed field of view; lens has gray tint with silver flash. When shield isn't needed, it can be quickly removed, flipped upside down and reattached so it's facing up and out of the way. Strategic vent placement and shape of the helmet's interior help move cool air over your head while stale, hot air is vented out. Roc Loc Air retention system lets you literally dial in a comfortable fit with a small knob; system can also be adjusted up and down to find that just right fit. Lightweight, thin and adjustable... Less

Fits the S-300 New Style Helmet Make sure you have same helmet style as the helmet pictured. It should have a lip and some vents on the top-back of the helmet.

Leatt Motorcycle Protection, Men's Dirt Bike Motocross Protection. Leatt GPX Race Neck Brace New sculptured, split front for improved comfort and fit New lower front side sections provides improved helmet clearance for looking down and to the sides New one piece fracture engineered CoreFlex rear thoracic strut for improved comfort and fit New on board 3-angle rear thoracic adjustment that requires no extra parts New body matched rear thoracic angles. Size #S/M 5°,10°and 15° and size #L/XL 0°, 5°and 10° New design clear strap included to use as optional 4-way adjustable for great comfort and fit Height adjustable rear table to match different helmet clearance preferences and riding positions Removable clip-on padding for easy cleaning and maintenance CE certified as Personal Protective... Less

Carbon fiber helmets may look sexy, but they're sure not doing the planet any favors. The Urge Down-O-Matic Veggie Helmet delivers fully certified full-face protection while minimizing environmental impact, thanks to a patented linen-fiber construction that mimics the properties of carbon fiber without any of the toxic by-products. It's not cheap to manufacture, but it's a great step toward a future of sustainable, functional products.Linen fiber construction uses sustainable resources and non-toxic processes to create a strong, eco-friendly shell materialRemovable , washable internal padding helps you dial in a secure fitLarge round vents maximize airflow to prevent overheatingLightw eight visor keeps the sun out of your eyes and your face off the ground

When it comes to full face helmets, having a background in motorsports has its advantages. Few cycling-specific full face helmets can claim to be DOT certified, and if they are, they tend to be portly, to be polite. The One Industries Gamma Helmet builds on One Industries' extensive moto experience to offer one of the lightest safety-rated helmets available. To pass DOT certification, the Gamma uses a pre-preg reinforced fiberglass shell. And, it easily passes safety standards set forth for cycling helmets. The shell is paired with a dual density EPS liner, which adds to its ability to slow varying impact forces. While safety first is the name of the game, helmet weight is an equally important factor. The lightweight shell won't blow up your neck muscles midway through a day of lift... Less

Fits the S-300 New Style Helmet Make sure you have same helmet style as the helmet pictured. It should have a lip and some vents on the top-back of the helmet.

We've come a long way from the Giro 'ice chest' aero helmet that Greg Lemond wore when he rode to a last stage upset of Laurent Fignon in the '89 Tour. In a similar twist of the general classification, Levi Leipheimer overcame a two minute deficit coming into a last stage time trial to leapfrog up the standings to win his first Tour de Suisse in 2011. He did this while wearing the Giro Selector Helmet. It's the successor to the longstanding benchmark for aero helmets, the Giro Advantage. As you might expect, Giro has used wind tunnel data to sculpt the new helmet in order to make it slicker and faster than the Advantage. And for most riders, a sleek helmet will do as much, or more, for lessening the overall drag coefficient as any other static change that you make to your bike or personal... Less

Leatt Motorcycle Protection, Men's Dirt Bike Motocross Protection. Leatt GPX Pro Lite Neck Brace New one piece fracture engineered CoreFlex rear thoracic strut for improved comfort and fit. New flat carbon finish for high-tech look New lower rear padding fit for better helmet clearance New colour coded rear thoracic strut angle wedges for easier angle adjustment New plastic hinges to achieve high production volumes Full carbon brace with aramid fibres Cross Link light weight vented padding Vented brace structure 600g +/- 50g CE certified as Personal Protective Equipment 89/686/EEC

The Aegis Juvenile helmet is perfect for young first time riders. Carefully designed for the little heads that wear them, the Juvenile helmet comes with proven safety features. Dial adjustable ring system is vertically anchored to prevent it from pulling out. Chin strap is anchored and comes with a quick snap release buckle that can be loosened with one hand. Removable cushioned head liner can be washed. Mesh covered vents help keep out dirt and debris.

2013 Answer Skullcandy Mx Helmet Plus FREE Keepitroostin Stickers and Moto is Life Bracelet Lightweight, precision molded, polycarbonate shell with molded-in dome crests for increased structural integrity. Custom graphics with high gloss, UV coated finish. On/Off air inlets and exhaust ports force cooling air through the shell's interior. Meets or exceeds Snell 2010 and D.O.T. standards We also have Jersey and Pants Combos Click here to check them out!If you need a good clean solid part Buy It

Surely, you've been waiting with bated breath for MET's Veleno Helmet to land stateside, and we're happy to tell you that your wait is over. Now, for the first time, you gain access to one of the most technologically advanced, and comfortable, cross country helmets on the market.MET takes comfort seriously, however, it doesn't just aimlessly punch multiple ports into its designs to achieve this. Instead, MET developed a protocol called Air Scale to measure ventilation. Simply put, it measures two essential parameters -- the Head Contact Surface (HCS) and Cooling Factor (CF).The HSC indicates the percentage of the head that's in contact with the helmet. Why is this important? Well, common sense tells us that when HCS is high, there's simply no room for air to circulate. So, this lets MET... Less

We've come a long way from the Giro 'ice chest' aero helmet that Greg Lemond wore when he rode to a last stage upset of Laurent Fignon in the '89 Tour. In a similar twist of the general classification, Levi Leipheimer overcame a two minute deficit coming into a last stage time trial to leapfrog up the standings to win his first Tour de Suisse in 2011. He did this while wearing the Giro Selector Helmet. It's the successor to the longstanding benchmark for aero helmets, the Giro Advantage. As you might expect, Giro has used wind tunnel data to sculpt the new helmet in order to make it slicker and faster than the Advantage. And for most riders, a sleek helmet will do as much, or more, for lessening the overall drag coefficient as any other static change that you make to your bike or personal... Less