APPLICATION: SOAK Kids swim vest is available in three size: Small Size S( for kids 2-4 years, 24-33 lbs). Medium Size M( for kids 1-2 years, 2-3 lbs). Large Size L(for kids 3-10 years,40-66 lbs). Perfect for boys and girls who are learning to swim. SOAK toddler swim vest can be used in swimming pools, sea beaches, on boats or by the lakeside. DURABLE MATERIALS: Made from high-quality neoprene and EPE polyethylene foam, the SOAK Kids Swim Vest is comfortable, soft, and lightweight. COMFORT & FIT: Designed with adjustable straps and a crotch strap, this swim vest ensures a snug fit. Multiple sizes are available to accommodate different body types. COMFORT AND SAFETY: Featuring three safety buckles and an adjustable high-density nylon strap, the SOAK swim vest fits securely on your child’s body. The adjustable bottom buckle stays secure even when floating in the water, providing increased safety. BRAND REPUTATION: SOAK specializes in kids' swim vests, wetsuits, and other sports gear. If you encounter any quality issues, please contact our customer service team for assistance.