The Halcyon Standard Doubles BC System is a twinset backplate and wing BCD built around the Halcyon Evolve wing in 40 lb (18 kg) or 60 lb (27 kg) lift, with the Halcyon Legend MK2 wing available for advanced routing and accessory control. The wing mounts directly to double cylinders, and the CNC-machined aluminum backplate is offered in Small, Standard, or Long, with a stainless steel option for divers who want additional ballast and improved trim. It is a common platform for technical diving training, cave and wreck diving, and cold-water diving with heavier gas volumes.
The fully adjustable Secure Harness with crotch strap is standard, and the Cinch quick-adjust harness can be configured for tool-free adjustment. Each system is built to order through the Halcyon Go Custom program, which supports wing color selection across the full Halcyon fabric palette, logo color choices, optional custom embroidery, backplate padding, ACB integrated weight pockets, and the MC Storage Pak. Every configured system ships with an inflator with a 52 cm / 22 in LP hose and is packed in a Halcyon Traverse bag.
- Halcyon Evolve wing in 40 lb (18 kg) or 60 lb (27 kg) lift; Legend MK2 wing configuration available
- Direct mounting to double cylinders; no single tank adapter required
- CNC-machined aluminum backplate in Small, Standard, or Long; stainless steel option for added ballast
- Fully adjustable Secure Harness with crotch strap; Cinch quick-adjust harness option
- ACB10 integrated weight pockets (4 kg / 10 lb capacity), trim weight pockets, backplate padding, and MC Storage Pak supported
- Custom wing colors, logo colors, and embroidery through the Halcyon Go Custom program
- Includes inflator with 52 cm / 22 in LP hose; packed in a Halcyon Traverse bag
