Make pool days more fun with this colorful Aeocoo Mermaid Puddle Jumper Swim Vest featuring built-in arm floaties and a bright underwater design. Designed for toddlers and young children approximately 20–50 lbs / ages 1–5, according to the product packaging. The lightweight foam construction provides buoyancy while allowing comfortable movement during supervised swim practice and water play. Features adjustable buckle straps, reinforced stitching and soft, flexible materials. Materials: Filling: 100% EPE polyethylene foam Outer: 80% polyester / 20% neoprene Perfect for pools, swim lessons, vacations and summer water play. New & unused in original packaging. Adult supervision required at all times.