This 12" insulated waterproof safety toe miner's boot has oiled waterproof leather,goodyear welt construction,vibram outsole,plate,steel shank,milled brass hooks and studs set with stainless steel washers,forest green soft,high abrasion,wicking nylon lining,and a foot insulated with 400 grams of Thinsulate ultra insulation.Features a non-removable stainless steel puncture resistant full sole plate,diamond plate rubber toe/heel guard,flexible internal metatarsal guard that meets the ASTM M I75/C75 requirements,and a safety toe rated at ASTM I75/C75,and a removable insole.Provides electrical hazard safety protection.Additional InfoSteel Toe,Thinsulate,Gothic,Outdoor,Goodyear Welt,ASTMDefinitionsOutsole,Insole,Insulated,Leather,Thinsulate,Vibram,Welt