Attributes . Sewing thread is made with Kevlar fiber for added seam integrity, Heat-Resistant in temperatures up to 260 Degrees C/500 Degrees F, Reverse cowhide for longer wear. Reinforced cowhide back patch for extra protection, Strapped thumbs and extended cowhide gauntlet cuffs for superior wrist protection, Gunn-cut styling and strapped thumbs round out comfort and durability . Names