This jacket-style BCD provides maximum comfort, stability and lift thanks to its completely detachable harness and air cell, seamless shoulder straps and special padding around the wings of the backpack. Made of 420 Cordura Denier outside and polyurethane on the inside, it features six aluminum D rings, an adjustable waist strap and cummerbund, trim weight pockets on the tank strap (10lb. total), grommets for attaching a dive knife, an adjustable and removable chest strap, two rear flat quick-dump/over-expansion relief valves, Airtrim Inflator System with LP hose, and seamless shoulder straps for added comfort.The Foldable Backpack System successfully merges comfort, lightness and size. The rubber portion of the backpack that comes in contact with the tank provides excellent gripping for optimum stability and comfort. And when folded, it's 30% shorter than a traditional backpack. The honeycomb structure makes it 40% lighter than a traditional backpack, which makes it ideal for travel. When closed, it is just 17"H x 12"W x 12"D in size and can easily be transported in your suitcase or small travel backpack. `Its equipped with Mares MRS-Plus 13lb. Mechanical Release System in medium, large and extra large and 8.82lbs in extra small and small. A simple click allows for easy and secure storage of the weight pockets while a single outward pull on the oversized handle releases the weights. If you don't need to use the maximum weight load, each pocket has Velcro dividers to eliminate weight shifting for added stability. Two trim weight pockets attached to the tank strap hold an additional 10lb. between the two pockets.Reach perfect buoyancy underwater seamlessly during the dive. It features a single intuitive and ergonomic control to inflate and deflate via two oversized buttons. The exclusive twin exhaust valve technology allows the Airtrim deflation button to simultaneously control both of the pneumatic exhaust valves making it possible to deflate the BCD simply by pressing a single button, without worrying about your position in the water.Features:Foldable backpack and suspension systemTrim weights and (Mechanical Release System) MRS Plus for balanceMaterials: Cordura 4206 aluminum D-rings2 zipper pocketsChest strapTank strapStraps to hold regulator/octopus in placeTwo year limited warranty