The Danner Caliper Aluminum Safety Toe Work Boots features a durable, full-grain leather upper with Danner Dry waterproof protection and Danner Dual Layer Comfort footbed with memory foam and PU provides instant and long-lasting comfort.FeaturesMemory foam strobel sock offers additional cushioning underfootPU midsole offers shock absorption and lasting reboundFiberglass shankDanner Caliper oil-and-slip-resistant rubber outsole offers versatile indoor and outdoor traction with a low-profile 90Adeg heelAluminum toe meets or exceeds ASTM F2413-18 I/75 C/75 EH