Take the ultra low profile Descent from 16 lbs. to 21 lbs. buoyancy in just a few seconds with the Stohlquist Add-a-Buoy. The Add-a-Buoy is a compact, weightless, accessory that slips into and lays flat against the back side of the front pocket compartment of the Stohlquist Descent. Once positioned, the inflation hose valve end lays ready to use at the bottom of special garage compartment up top. Float bag style shutoff valve lets you add just a little or a lot....up to 5 lbs of additional frontal lift. The front pocket neoprene compartment stretches to accommodate the fully inflated Add-a-Buoy. Fully illustrated instructions included.