... IMPA Code:33 09 04 Size:36-50 Features of fire proof boots:Detailed Product DescriptionThis one with the good quality, and ... amoung the fireman.Performance:anti-slip,anti-smash,anti-piercing,fire-relatrdant,heat-resistant,insulation acid,and alkai proof,ectOther infomation1 ... /axe/self-contained apparatus breathing)2.always use in forest fire rescue, general fire rescueand so on acid resistant boots