After months of collaboration with some of the worlds top sidemount divers, Halcyon is proud to offer the ContourSidemount System. The Contourcomes from the factory as a turnkey sidemount system. This system has a unique wing-shape that moves your center of gravity farther down, accommodating the lower sidemount cylinders and making it easier to trim out for the SM diver. The ContourSidemount System also allows for a side-slung configuration for open-water divers. The unit can be used right out of the box, without the modifications that many other units on the market require. Features: Requires no bungees for wing-shape control and boasts 22.68 KG / 50 LBS of buoyancy with the Contour The easily dumped top OPV is located on the inside of the wing for increased protection. The enclosed over-the-shoulder OPV strings allow for easy buoyancy control, without trapping the line. High-wear areas at the top of the Contour Adjustable lower tank-attachment point Adjustable crotch strap an