OMS Deep Ocean 2.0 Single Bladder w/ Internal Retraction BandsDeep Ocean 2. 0 Single Bladder w Internal Retraction Bands Deep Ocean Wings include the Retraction Band System, which is designed to keep the wing folded behind the divers shoulders, reducing drag and the chance of entanglement. Works with single or twin cylinders. Features: Interior retraction band system Lift capacity: 48 60 lbs (21. 7 27 kg) New style configuration 16" Inflator hose on the left shoulder Power inflator hose included Interior zipper