COMFORTBASE removable contoured footbed and molded nylon arch shank and FloatPro Foam midsole for lightweight comfort that lasts Carbon Fiber Safety Toe Slip and oil resistant durable rubber outsole 100% recycled laces and webbing, padded collar, bellows tongue keeps out debris, protective and abrasion resistant synthetic heel and toe cap and breathable mesh lining ASTM F2413-18 I/C EH