Halcyon Evolve Wing: The Halcyon Evolvemaintains a novel, industry first-design. This unique circular wing provides unprecedented control, allowing divers to easily fine tune their buoyancy, regardless of diving position. CE-certified EvolveBuoyancy Compensator (wing) Inflator with 52 CM / 22 IN LP hose comes standard on Halcyon wings No harness nor backplate included!Halcyon Backplate and Harness: The Halcyon Secure Harness provides an infinitely adjustable fit, eliminating the uncomfortable movement found in conventionaljacketbuoyancy compensators. This perfectly tailored fit means that divers of all sizes can enjoy a custom diving configuration that supports unparalleled stability and diving comfort. Moreover, this unique system is easily convertible, allowing one to adjust buoyancy or quickly switch from singles to doubles. Regardless of your future aspirations, this flexibility means your diving system can grow with you. From your first open-water dive to your 100th deep d