PU Work Boot With Composite Toe

15″ high PU (Polyurethane) boot with premium and removable ergonomic insole. Composite toe cap, meets or exceeds ASTM F2413-11; I/75 and C/75 standards of protection. Remains light and flexible for a comfortable fit at -20 C / -4 F.PU foamed material consisting of millions of tiny air bubbles help to keep your feet warm in the Winter and from transpiring profusely in the Summer. Clean design – promotes plant hygiene. Premium Insole – less fatigue more comfort – soften impact. Complies with ASTM.