Derived from the founder’s experience with inflatable stand-up paddleboards, Swell’s Stash Coolers combine the benefits of hard and soft coolers into one rigid, inflatable system. The rectangular C-Series comes in four sizes — from 75 to 175 quarts. The A-Series, which is slightly A-shaped, comes in 225-, 300-, 450- and 600-quart sizes. An air valve allows for inflation of three chambers at once; a high-volume pump is included with the coolers. Features include reinforced feet that double as tie-down points, multiple carrying handles, stainless-steel D-rings, mesh pockets, large drain plugs and YKK zippers. Stash Coolers range in price from $499 to $999 and are available exclusively at West Marine.