Munro Women's Derby Slip-On Shoes rubber sole Flexible latex rubber outsole absorbs shock and resists slips for great-feeling steps. Knit soft lining breathes and wicks away moisture to help keep feet healthy and dry. Contoured polyurethane foam insole can be removed to accommodate orthotics. Leather upper, Knit Soft (polyester / nylon) upper lining and sockliner, polyurethane insole... Steel shank, latex rubber outsole. Care: Buff with leather cleaner / polish. Wipe with dry cloth.