Halcyon Legend Mk2 Double Cylinder BC System (Aluminum Backplate)

Built for the Depths. Engineered for Travel.

Halcyon helped shape technical diving from the start, beginning with twin cylinders. As pioneers of backmount systems, the Halcyon Double Cylinder BC System (Aluminum) is the ultimate twin-set platform for technical divers pushing boundaries—whether you're in a complex cave system, exploring deep historic wrecks, or preparing for advanced expedition diving where luggage weight matters. It provides a modular, foundational system with room to grow and an ultra-lightweight profile.

Featuring the Legend™ MK2 Wing & Configurable Harness

This system comes exclusively equipped with the advanced Legend™ MK2 Wing, engineered for precision trim, integrated hose routing, and unmatched accessory control. Paired with a lightweight Aluminum Backplate, you can tailor your rig to your exact diving style by choosing between the minimalist, ultra-rugged Standard Harness or the highly adaptable Deluxe Cinch™ System. This modular setup offers absolute readiness right out of the Halcyon Traverse bag.

⚙️ Technical Specifications

• Wing: Halcyon Legend™ MK2 – Advanced routing, Opti-Weight pockets, and accessory control (Available in 40 lb / 18 kg or 60 lb / 27 kg lift capacities).
• Backplate: Aluminum – Ideal for lightweight travel and maximizing agility. Available in Small, Standard, or Long sizes to perfectly fit your torso.
• Harness Configuration Options:
  • Standard: Classic, continuous webbing harness for a minimalist and bulletproof setup.
  • Deluxe (Cinch™): Incorporates the Cinch™ Quick-Adjust system for instantaneous, tool-free fine-tuning, complete with deluxe shoulder and backplate padding.
• Included: MC Storage Pack, LP inflator hose (56 cm / 22 in), and a Halcyon Traverse Bag for easy transport.
• Optional Upgrades: ACB10 weight pockets (4 kg / 10 lb capacity) and trim weight pockets.