Description

Built for the depths. Ready for what’s next. Halcyon helped shape technical diving from the start, beginning with twin cylinders. As pioneers of the backmount systems, we redefined twin-set diving with the Evolve: the first circular dual-bladder system, built for perfect balance and trim.

The Standard Doubles Cylinder System features the Evolve wing in your chosen lift capacity, with an upgrade option to the advanced Legend MK2 for next-gen performance. Ideal for wrecks or cave dives, Halcyon wings ensure streamlined stability and fit, keeping you focused in challenging environments.

Stock Specifications:

Wing: Halcyon Evolve BC in 40 lb (18 kg) or 60 lb (27 kg) lift

Backplate: Aluminum (standard, long, or small size)

Harness: Secure Harness – fully adjustable

Included: Inflator with 52 cm / 22 in LP hose

Make it your own with the Halcyon Customize Tool

Through the Halcyon “Customize” Tool, you can evolve this foundation into a fully customized system, precisely tailored to your diving style, configuration preferences, and expedition goals. Simply build your ideal system and send us the QR code for your exact build.

Go Custom Upgrades:

Wing: Halcyon Legend MK2 in 40 lb (18 kg) or 60 lb (27 kg) lift– advanced routing and accessory control

Backplate: Stainless steel backplate (standard, long, or small size) for improved trim and ballast

Harness: Cinch™ Quick-Adjust Harness for tool-free fine tuning

Optional Accessories: ACB10 weight pockets (4 kg / 10 lb), trim weight pockets, backplate padding, MC Storage Pak

Who is it for?

• Serious technical divers entering twin-set and overhead environments
• Explorers preparing for deep, long, or decompression dives
• Divers who want a modular, foundational system with room to grow
• Travel-ready technical divers needing lightweight components with upgrade options

Questions? Need help choosing the best gear for you? Contact Us for helpful advice, additional size, colour, and customization options (as applicable), shipping help, and more. Can’t find what you’re looking for? Let us source it for you! The availability of Back Ordered items may vary and require additional shipping time.