PROTECTION FOR YOUR CHILD: This swim vest has adjustable harnesses under the kid's crotch, so it stays in place and sticks to the toddler's body. The release buckle of the floating vest is very sturdy, so you don't have to worry about easy damage.^PREMIUM MATERIAL: The life jacket is made of neoprene outer layer and EPE foam inner layer. The neoprene material allows it to dry very quickly and is easy to pack. Plus, the flotation jacket is lightweight, compact and durable, making it ideal for travel.^MULTIPLE USES: Toddler life jackets can be worn in many different scenarios. Kids can wear this flotation vest at the beach, pool, water park, boat and more.^Size Guide: S: 8-18kg/17.6-39.6lb Ages 1-3; Men: Ages 4-6, 18-25kg/39.6-55lbs; L: 25-35kg/55-77lb Ages 7-9^Warning: If you can't swim at all, use a professional life jacket. Children must be accompanied by their parents to use this swim vest.