Craniums get all the attention in the protection world, but with Fox's Baseframe Pro SL sleeveless protection vest you can put your core in the spotlight. This compact vest features armor on the hips, chest, and spine, elevating safety while you ride. It utilizes F3 impact foam that provides full coverage, without restrictive movement. On the back, large perforations and flex grooves contour and flex with you while you ride, so you can forget that you've got armor on at all, until you overcook a berm and wind up in the bushes. F3 body armor offers unique traits that harden on impact, and soften with body heat, allowing the foam to mold to your unique anatomy, while still giving you serious backup when you need it. Open stretch mesh makes up the body of the vest, allowing for serious ventilation and moisture wicking while you ride.