... ,heat-resistant,insulation acid,and alkai proof,ect IMPA Code:33 09 04 Size:36-50 Features of fire proof boots:Detailed ... .Performance:anti-slip,anti-smash,anti-piercing,fire-relatrdant,heat-resistant,insulation acid,and alkai proof,ectOther infomation1.Always use with ... in forest fire rescue, general fire rescueand so on acid resistant boots