Ace Bullfrog Pro II CT Unisex Size 4M Black EVA Slip 。ACE Work Boots Bullfrog Elite CT safety boots provide heavy-duty protection with a composite toe and slip-resistant outsoles by Shoes For Crews. Constructed with a durable rubber upper and a nylon drawstring gaiter at the collar to keep debris out, these boots are designed for demanding environments. The interior features a breathable mesh lining for comfort during long shifts, and the rugged tread pattern ensures superior traction on various surfaces. Rated ASTM F2413-18 M/I/C EH and ASTM F3445-21 SR for safety and electrical hazard protection.