The Fox Baseframe Pro SL Shirt  provides moisture management, cooling, and protection in a single low-profile unit. Fox Baseframe Pro SL shirt Features Minimal restrictions, maximized benefi ts EN1621-1 Level 1 Back including high and low temperature conditions CE Certifi ed D3O® back insert features world leading impact protection technology Large perforation and fl ex grooves in the back foam contours and fl exeswith rider movement Body heat activates (softens) the polymer to conform to body Moisture wicking, open stretch mesh for breathability Built in padding at hips offers additional comfort F3 back insert is removable for easy wash 35% Pu,36% Nylon, 8% polyster, 20% eva