The Wolverine Rev DuraShocks safety toe shoe with UltraSpring cushioning is anything but ordinary. The slip-resistant outsole is built with Wolverines best-known comfort technology, DuraShocks Flex, tuned for maximum flexibility, shock absorption, and comfort for long days on your feet. The Rev has the highly responsive UltraSpring midsole cushioning that provides a lightweight, energized ride to push through the daySPECS & TECH Breathable mesh upper with TPU molded pieces Moisture wicking mesh lining Removable full cushion low density PU footbed Revolutionary UltraSpring high rebound ETPU midsole provides an energized ride Rubber lug outsole with Wolverine DuraShocks Flex Lightweight cement construction Nylon shank adds extra strength ASTM F2413-18 M/I/C EH rated composite CarbonMAX toe