Features:
Breathable mesh inner lining High quality nylon shoelace Fly knitting vamp anti-smash steel toecap wear resistant rubber soles Prevent puncture middle steel soles Optional function: Anti-smash,Puncture proof,Oil resistant, antiskid,cold-proof,anti-static,high temperature resistance, insulation 6KV. Shoe sole size unit mm or cm (250mm = 25CM=40)