Technologically outfitted for world-class protection, the Fox Baseframe Pro Short Sleeve Men’s Guard Shirt is a breathable base layer designed for maximum defense. Equipped with a removable, CE certified Viper Stealth back insert, the Baseframe Pro Guard Shirt is meticulously engineered to protect the spine from sudden impact on-trail. Large perforations and flex grooves in the back foam enhance mobility to match rider movement, while body heat activates soften the material for a customized fit that molds to your body composition. Additional inserts in the chest and shoulder region further protect the delicate frame from falls in the forward or sideways direction – maximizing defense in the areas that require it most. Moisture-wicking and breathable with an enviable dose of protection, the Fox Baseframe Pro Short Sleeve Men’s Guard Shirt shields the body from unpredictable spills on rough terrain.