All RED RAM leather apparel has been chrome tanned to assure softness and durability while resisting heat, sparks, slag and cuts. All seams are double lock stitched and sewn with DuPont KEVLARŪ These welding jackets are great for applications in welding and heat, plus all general purpose applications requiring heat, flame or spark protection. Red Ram apparel has Premium heavy side split cow leather, is Chrome tanned to assure softness and durability, All seams are double lock stitched and sewn with DuPont KEVLARŪ, Anodized leather reinforced snaps to prevent arc flashback, and is Riveted in all major stress points.