When you're planning a fun day out on the water with family, ensure your young ones stay comfortable in the O'Brien Flex V-Back Life Jacket. The V-Back stretch panel offers plenty of mobility and comfort and adjusts to different body types. The vest is made from BioLite material that's lighter, faster drying, and more eco-friendly than neoprene. This US Coast Guard approved vest has a convenient zip closure and two adjustable chest straps to keep your kids locked in tight while they are having fun out on the water.• BioLite construction is soft, lightweight, breathable, and eco-friendly• Flex Fit stretches and wraps around body contours• Split V-Back Stretch Panel for maximum maneuverability and comfort• Zip closure for easy entry and secure fit• Two concealed belts stay out of the way• Leg loop and grab strap for extra safety• Multiple front and side hinges enhance range of motion• Wide armholes improve mobility• Harmonized U.S. Coast Guard and Transport Canada Approved• Child size: 33-55 lbs. V-Back stretch panel offers mobility and comfort Zip closure, adjustable straps, leg loop, and grab strap for a secure fit Harmonized U.S. Coast Guard and Transport Canada approved | Child Flex V-Back Life Jacket