Maximum flexibility and support to stay comfortable and on jobsite XRT Composite Toe meets or exceeds ASTM F2413 safety standards MemoryTech Massage 2.0 removable memory foam footbed Static Dissipated allows static electricity to transfer onto the walking surface protecting equipment from static discharge Sublite foam midsole offers supportive lightweight cushioning ASTM F-3445 rated SR outsole with treaded rubber heel and forefoot pads and deep flex grooves Reebok Work Men's Sublite Cushion Composite Toe SR SD