XcelArc leather sleeve set is heat and flame resistant made from leather using durable and pliable split cowhide. All leather seams are double lock stitched with high strength KEVLAR® thread. Panels and stress points are reinforced with doubled leather and metal rivets that are insulated. The unique self balancing strap system features a quick release buckle and sliding length adjuster. Snap lock rivets at the wrist provide quick and easy closer and release of the sleeve entry.