The Aqua Sprinter Floatation Belt has been designed to keep you in the proper vertical position to maximize the efficiency of your workout in the pool. The patented Sprinter belt holds the swimmer securely at the waist to stay upright, with no tipping forward. It's made from closed cell EVA foam and is completely latex free. This belt can turn the normally mundane chore of exercise into a fun activity for everyone from the professional athlete to the whole family! It has a 60" adjustable belt, and comes packaged in a poly bag with header card. Approximate Sizes: X-Small - 50-100 lbs. (Purple) Small - 100-160 lbs. (Blue) Medium - 160-220 lbs. (Yellow) Large - 220-280 lbs. (Green)