This product is made of Grade A sheepskin, which is lightweight, durable, and has certain flame retardancy and heat insulation. The sewing thread is sewn with aramid fiber, which is abrasion resistant, cut-resistant, fireproof and flame-retardant. The cuffs are made of sheep's second layer, which is strong and durable, has certain anti-penetration properties, heat insulation and other properties, and provides good protection for the operator.