USCG approved type III. A terrific value in flotation vests, this smart-looking vest is made with nylon over closed-cell foam for reliable performance. Belts with sturdy quick-release buckles provide a terrific fit. Mens sizes: XS(28"-32"), S/M(32"-40"), L/XL(40"-52"), 2XL(50"-60"), 3XL(60"-70").