FitFlop Womens/Ladies Bow iQushion Sandals. Upper: Synthetic. Lining: Synthetic. Insole: Synthetic. Midsole: Synthetic. Outsole: TPU. Fabric Technology: Breathable, iQushion Technology, Waterproof. Cushioned, Ergonomic Footbed. Flat. Design: Bow. Toe Style: Open. Sole Features: Lightweight, Soft. Fastening: Slip-In. Ref: UTGT36444