The Mares Pure BCD is a simple wing style BCD with plenty of padding & their new SLS weight pocket system. The wing holds you horizontal in the water & gives you a greater freedom of movement in & out of the water. Wing The bladder of the BCD only inflates behind you & is shaped so that when you're in the water it will hold you in a horizontal position. When dump air out of BCD a bungee will fold the wing up & tuck it neatly in behind you to stay streamlined. The wing is free-floating so while it is attached to your harness it is free to move when needed so it doesn't affect the shape or hold of your harness Slide & Lock Weights Integrated weights on either side of the BCD are held in place with the secure Slide Lock System, SLS, which provides a reassuring grip on your weights & a reliable quick release button in the ergonomic handle. Weight approx.: 3.6kg View product manual