Each kit contains four 7.5oz easy filling, heavy duty, collapsible flasks. The Flasks are made of durable, puncture resistant, odor proof and taste proof polyester. The flasks are flat when empty and can be rolled up and put in your pocket when the liquid is emptied. The Flasks have positive seal spouts and are freezable and perfect for almost any liquid. These flasks are non-metallic, undetectable and ideal for concerts, stadium events, sports fans, air travelers, golfers, hikers, hunters and skiers.
Mix and match four of your favorite colors or designs when ordering.