This swimming life jacket provides enough buoyancy while snorkeling, and the neon colors provide excellent visibility, great for learners. Fully inflated without the need of excess air. Press and hold blow air valve when inflating or deflating, and the valve will be automatically shut down when loosen it. Small footprint, easy to pack, simple to put on and take off, very comfortable without skin abrasions, fitting well for most adults. 22"W x 20"L