This vest is designed to provide pressure through compression when weight is not needed. The vest itself is made of neoprene but is less dense than other neoprene vests to allow for more breatheability. The hook and loop flaps on shoulders and sides are for size (tightness) adjustability. Since weight is not added, any size vest is the same price - $59.99.
Vests are available for pick-up in the Dallas, TX, area to avoid shipping costs.