Water Activity Versatility Detachable adjustable waist strap with a secure nonslip fit and multisize waist compatibility provides consistent buoyancy support across a range of water activities. Reliable Water Companion Minimizes fatigue and helps reduce cramps, while visibility coloring and a carefully crafted buoyancy structure improve water environment awareness and safety. Sealed Compartments Kayaking and swimming compatibility are combined with a waterproof compartment structure to secure items. Sealed compartments provide reliable waterproof storage design. Wearresistant Material Punctureresistant strength and water immersion resilience ensure lasting durability. Flexible, tearresistant fabric preserves the buoy's shape and performance through regular use. Key benefits Enhanced buoyancy and stability for swimming and kayaking activities Adjustable, multisize waist compatibility with a secure nonslip fit Safe storage for items in waterproof compartments Durable, waterfriendly materials that retain shape over time Use scenarios Pool lap training and drills: use the buoy for stable buoyancy and alignment during technique work; keep small items secure in the waterproof compartment. Openwater swimming and kayaking sessions: enjoy reliable buoyancy and visibility for easy spotting, with valuables stored safely dry. Water rehabilitation or endurance practice: reduced fatigue and cramp relief support longer sessions, while the durable fabric withstands frequent use.