Explorer offers side-stretch gore for better slip-on and slip-off comfort and fit. High-tech comfort features and firm heel stabilizers keep the body aligned, your muscles in proper balance and energy levels at their max. The unique slip-resistant Grip-Lock Sole is designed to react to slippery environments. You remain calm, cool and comforted. Energizing, removable Corkacell anti-microbial insole with Drilex to wick away moisture. Orthotic compatible. Padded in the forefoot and heel. b>