Ergonomically engineered to help optimize your body's alignment, natural movement & energy; Light pressure-diffusing Microwobbleboard midsole - triple-density EVA cushioning follows 3 footstep stages (firm heel/soft middle/medium at toes); Natural arch support; Wide fit, this style fits true to size; Grip level 3 - treaded rubber outsole slip-resistant to oil/grease/glycerin/water; Antistatic sole reduces electrostatic build-up in working environments; One-piece EVA upper (with vent holes) & removable contoured PU footbed to enhance comfort/fit; Easy to wipe clean (remove footbed first); Upper Material: EVA foam; Lining Material: Antibacterial polyester-mesh footbed