"The O'Brien General Purpose Adult 4-Pack Life Jackets is an efficient and convenient way to deliver safety on the water, whether you are boating or paddling. The open-sided design and thin profile provide a comfortable fit as the life jacket easily wraps around your body and is held snugly in place with 3 adjustable belts and slide-release buckles. While not in use, easily store these O'Brien life vests in their vented carry bag where they will await their next adventure on the water. Harmonized U.S. Coast Guard and Transport Canada approved. Size: Adult (chest size 30""-52""). Universal sizing fits most adults Vented storage case is perfect for storage Easy entry and secure Fit Open-sided design accommodates most adults U.S. Coast Guard approved"