Timberland PRO PowerWelt steel toe work boots have a specially impregnated Ever-Guard leather that is extremely abrasion resistant and withstands temperatures up to 248°F. Wears down 60 grit sandpaper. Great for roofers, landscapers and anyone who is tough on their work boots. The 100% waterproof PowerWelt is constructed with premium full-grain waterproof leather and a durable membrane that allows your feet to breathe. Goodyear welt construction and a lightweight polyurethane outsole. These work boots have a temperature regulating and antimicrobial footbed that provides all-day comfort while on the job. Unique Ladder Lock outsole design and internal steel shank prevents arch fatigue when standing on extension ladders. Padded collar. Speed lacing system.