Widths: Medium (B), Wide (D), X-Wide (2E- Box Labeled WW), XX-Wide (4E- Box Labeled XW) Slip-Resistant Rocker Bottom Outsole with Strong Nylan Shank High Rebound EVA Midsole for Shock Absorption Accommodates Prescribed Orthotics Extended Medial Heel Stabilizers The Sprinter women's sneaker by Drew features our Walk Right Technology and is engineered for protection and superior comfort. A slip-resistant outsole will keep you on your feet. The high rebound EVA midsole provides shock absorption to reduce foot and leg fatigue. Complete with two removable insoles for added or double depth. Soft, flexknit upper make it ideal for sore, swollen feet.