Fly Racing Kinetic Inversion Adult Motocross/Off-Road/Dirt Bike Motorcycle Helmet - Wild / Medium
DOT Approved - other standards include AS (Australian). Meets or exceeds all the toughest safety standards on the marketPoly Alloy Shell - combination of high strength poly materials create a durable light weight shellDual Density EPS Liner - two layers of EPS (Expanded Polystyrene), one softer one slightly harder, combine to provide more progressive impact absorptionHi-flow Mouthpiece - designed with a cool style and plenty of air flowPlush Quick Snap Removable Liner and Cheek Pads - keep you looking clean and help extend the life of your helmetHigh Volume Vents - ten (10) massive vents aligned with EPS (Expanded Polystyrene) channels flow air through the helmet. Large exhaust vents eliminate heat build up2013 ModelSizing Note:X-Small - Hat Size: 6 5/8 - 6 3/4 - Centimeter: 53 - 54 - Inches: 20 1/2 - 21 1/4Small - Hat Size: 6 7/8 - 7 - Centimeter: 55 - 56 - Inches: 21 1/4 - 22Medium - Hat Size: 7 1/8 - 7 1/4 - Centimeter: 57 - 58 - Inches: 22 - 23Large - Hat Size: 7 3/8 - 7 1/2 - Centimeter: 59 - 60 - Inches: 23 - 23 3/4X-Large - Hat Size: 7 5/8 - 7 3/4 - Centimeter: 61 - 62 - Inches: 24 - 24 1/22X-Large - Hat Size: 7 7/8 - 8 - Centimeter: 63 - 64 - Inches: 24 1/2 - 25 1/4