TYUTOSEG Snorkel Vests for Adults?Inflatable Snorkel Vest for Adults for Water Sports Fun Safety (Blue)

How to use? 1.Loosen the straps to make them bigger, then put your head through the hole. 2.The crotch strap will naturally fall behind you. find the waist strap and bring it around you. 3.Secure the male buckle to the corresponding female buckle, just like you did with the crotch strap. 4.Once the straps are secured, adjust their length to find your most comfortable fit. 5.To inflate or deflate the air, simply press down the air valve. When you're ready to lock in the air, release your fingers and the valve will automatically seal.