Product Features U.S. Coast Guard Approved /li> Hidden belts for increased mobility Four (4) adjustable straps Quick release buckles Manufacturer’s Warranty: 1-year Sizing Information S: 32”-36” (Chest) M: 36”-40” (Chest) L: 40”-44” (Chest) XL: 44”-48” (Chest) 2XL: 48”-52” (Chest) 3XL: 52”-56” (Chest)