Plus Fitting System with Walk Right Technology Insole that includes two removable footbeds for the perfect fit. Accomodates Prescribed Orthotics Lightweight, Polyurethane Outsole that is durable and slip-resistant Soft, Foam-padded Collar prevents irritation and heel slippage for all day comfort TPU Shank with dual heel stabilizer system provides protection and stability Drilex Lining wicks away moisture and keeps your feet comfy and dry The Drew women's Tabby bootie fun, classic silhouette made with walk-all-day comfort. It features moisture-wicking Drilex linings, faux fur trim and a slip-resistant sole. The removable WalkRight Technology Insole is engineered for protection and superior comfort.