Indispensable for those going on a tour and for anyone who commutes by bike, this helmet cover can make or break the ride back home when Mother Nature throws a curveball. Your head stays dry without overheating and the bright neon color increases your visibility in low light conditions. Lightweight, fully waterproof GORE-TEX Active fabric technology is windproof and extremely breathable and won't add bulk. Elastic seaming makes it easy on/off and the fit is generous enough for most helmets.