Trekking, travelling and camping Materials: 50% nylon, 50% PU film Lining: Polyurethane foam Lightweight, thin, breathable, durable and eco-friendly fabric delivers maximum comfort Thickened highly resilient foam for fast self-inflating, offering superior comfort Dual-layer and leak-proof air valve for easy operation Water-repellent coating keeps the mat dry TPU technology makes the mat flatter Dimensions: 183*51*3cm Size: F Weight: 570g