evo.com | Fox Racing Body Armor > The Fox Racing Baseframe Pro Short-Sleeve Baselayer delivers trusted protection in a lightweight, low-profile design. Built with breathable mesh and flexible Koroyd inserts, it helps keep you cool while providing impact protection through the chest, back, and shoulders. The short-sleeve fit keeps you moving freely and comfortable when you're pushing harder on the trail. Mesh Fabric for Maximum Breathability Compression Side Panels to Secure the Guard Inserts and Maintain a Close to Body Fit Bonded Collar with a Wide Neckline for Comfort and Seamless Integration for Under Jersey Koroyd Inserts with Patented Auxetic Structure to Allow for Maximum Mobility EN1621-1 Level 1 Koroyd Shoulder Inserts | Fox Racing Baseframe Pro Short-Sleeve Baselayer 2027 - Medium in Black