The heat working gloves are deft and extreme abrasion, heat proof of 500 degrees, and in compliance with EN407 and EN388. All the materials of our working gloves are enviromental friendly. Such as Para-Aramid (Kevlar is the best known brandname from Dupont) and Meta-Aramid (Nomex is the well known brandname), PBO fiber from Toyobo of Japan, polyester, cotton, etc. The material Para-Aramid is ...