Upper: RPET. Insole: Cushioned, Foam, High Rebound, PU (Polyurethane). Outsole: Durable, EVA. Fabric Technology: Lightweight. Bounce Eco Footbed. Flat. Cut: Low. Design: Logo, Text. Toe Style: Round. Sole Features: Bloom Algae Technology, Comfort. Fastening: Lace Up. Sustainability: Made from Recycled Materials. Ref: UTFS8952