O'Neill Wake Waterski Infant USCG Vest US Coast Guard Approved Type II PFD for babies up to 30 lbs body weight Comfortable nylon shell over closed cell PVC marine foam shaped to float baby face-up Adjustable safety belts with durable Delrin quick-release buckles and handy grab loop on the head cushion Soft and comfortable. Adjustable safety belt between the legs keeps vest secure. Durable exterior, nylon panels with PVC backing. Improved ease of entry and Ultraviolet protection.