Keep valuables dry and add reliable buoyancy while you swim or enjoy water sports. Key benefits Superior sealing: manual inflation valve with valve cap, roll-top closure and double-layer airbags combine to provide a tight water seal that keeps inner contents dry and protected from water damage. Clear capacity: holds clothes, a mobile phone, wallet and other essentials so you can carry what you need without worrying about water exposure. Compact when inflated: about 28 x 60 cm (11.02 x 23.62 in) before inflation and about 23 x 45–50 cm (9.06 x 17.72–19.69 in) after inflation — spacious enough for essentials, yet streamlined when in use. Hands-free convenience: built-in waist belt secures the swimming bladder to your body so the buoy floats beside you and does not impede movement while swimming. Multi-purpose: designed for a wide range of water activities including swimming training, open-water swims, drifting, boating, kayaking, surfing and fishing. How it solves common problems Prevents water damage: the combined valve system, roll-top seal and double layers minimize leaks and keep electronics and valuables dry. Eliminates the need to check or carry items in pockets: the waist-mounted design keeps items accessible and reduces drag compared with handheld dry bags. Adds safety and visibility: the floating bladder provides an extra flotation aid that stays with you during solo swims or long-distance training. Typical use scenarios Open-water training: clip the waist belt on before a lake or ocean session to carry a phone, keys and energy gel while maintaining streamlined movement and buoyancy. Day kayaking or boating: store dry clothes, wallet and documents in the sealed bag; the flotation makes retrieval easy if it comes loose. Beach or surf sessions: keep small valuables protected from sand and saltwater while the bladder doubles as a nearby float. Specifications and performance Seal system: manual inflation valve + valve cap, roll-top closure Construction: double-layer airbags for enhanced protection and durability Size: ~28 x 60 cm (11.02 x 23.62 in) before inflation; ~23 x 45–50 cm (9.06 x 17.72–19.69 in) after inflation Attachment: built-in waist belt for hands-free use Practical, reliable and easy to use for anyone who needs dry storage and buoyancy during water activities.