Color B self inflating air mattress designed for easy use and reliable comfort. Key benefits No pump required: The self inflating design saves time and effort. Open the valve and the mattress automatically fills with air for quick setup. Comfortable support: 4.5 cm thickness provides a cushioned surface for resting or sleeping, reducing pressure on hips and shoulders. Versatile material: Made from a material suitable for use in swim training and wet environments, so the mattress works on land or in waterbased activities. Compact and portable: Lightweight construction and a packing strip on the bottom make rolling and securing the mattress fast and simple. The packed size is small enough to hang on a backpack for travel. Practical performance: Durable feel and stable air retention for consistent comfort during outdoor or indoor use. Features and specifications Color: B Type: Self inflating air mattress, no pump required Thickness: 4.5 cm Packing aid: Builtin packing strip on the bottom for fast rollup and secure storage Portability: Lightweight, compact, backpack compatible Use scenarios Camping and hiking: Fast setup at campsites and easy attachment to a backpack for multiday trips. Poolside swim training: Use in waterbased training sessions as a buoyant platform or resting surface. Travel and overnight stays: Compact packability makes it convenient for hostels, guest rooms, or road trips. Why choose this mattress This self inflating air mattress solves common problems of slow setup, bulky gear, and poor onground cushioning. Its 4.5 cm thickness and waterfriendly material deliver versatile comfort while the packing strip and lightweight design make it simple to carry and store.