Halcyon Backplate with Cinch Adjustable Harness
Halcyon Aluminium Backplate

Halcyon Backplate with Cinch Adjustable Harness

Sale price£425.00

The Halcyon Backplate with Cinch Adjustable Harness comes with either a steel or aluminium backplate. The Halcyon’s novel cinch harness kit is factory fitted to the backplate of your choice. Now you can adjust a harness in a flash.

Steel or Ali Backplate

Steel or Ali Backplate


Dispatched in 1 to 2 days

Contact Form & Details

How can we help?

If you need to contact us for any issue or assistance, you can do so online by filling out the online Contact Form, emailing us at sales@dirdirect.com or calling us on +44(0)1305 824 555. If it's about a purchase you've made for us please also include your order number.

Our brick-and-mortar store Underwater Explorers based on Portland, Dorset is staffed 7 days a week, including weekends and bank holidays. As it's an active store visited by divers from around the country and world regularly, if we can't make it to the phone for any reason please leave a message and we'll get back to you asap.

Any queries are usually answered the very same day and at most within 24 hours.


Why Portland?

We’re located on the Isle of Portland (in Dorset) because Portland has been one of the most popular scuba diving locations in the United Kingdom even before we set up operations here back in the year 2000.

On one side, we’re minutes away from the sheltered waters of Portland Marina and Harbour, while on the other, it’s just a brief walk to reach our famous scuba diving destination Chesil Cove and start of the 16-mile-long Chesil Beach.  

Portland’s location makes it ideal for scuba diving, freediving, snorkelling and other surface water sports activities. 

Check out how many wrecks we have around here by clicking on Scimitar Diving's Wreck & Dive Sites chart!

Alongside dive clubs, many instructors and dive schools travel here to train and offer scuba diving certification ranging from open water diver to mixed-gas tech diving or rebreather diving levels.

Whether you’re doing a boat dive from Portland Marina or Castletown or a shore dive at Chesil Cove, Portland is well known for offering many possibilities: Reef diving to wreck diving and night diving, underwater photography or underwater videography. Anything other than cave diving is possible here.

Likely being the best-stocked diving shop in the UK, at Underwater Explorers we offer in-store scuba diving equipment advice and sales, as well as gas fills, to locals and visitors (read About Us).

But... If you’re googling “scuba diving shop near me” like some, look no further, there's DirDirect online.

Here at DirDirect, we list our cutting-edge equipment for worldwide delivery and we’ve got you covered whatever your level of diving: We’re your local dive store wherever you are in the world.

All that with over 20 years of experience especially in technical diving, from training to equipment, advice and sales.


Underwater Explorers, Unit 1, Maritime Business Centre
Mereside, Portland, Dorset, DT5 1FD


The Halcyon Backplate with Cinch Adjustable Harness comes with either a steel or aluminium backplate. The Halcyon’s novel cinch harness kit is factory fitted to the backplate of your choice. Now you can adjust a harness in a flash.

Halcyon Cinch Harness

The Halcyon Cinch Adjustable Harness redefines what it means to dive a backplate, building upon a platform of simplicity while providing unprecedented security and ease of adjustment.

Halcyon developed the Cinch to save divers time and effort while sizing, fine-tuning and resizing diving harnesses.

Now you can change suits or divers and adjust the harness in a flash without compromising the harness integrity or Halcyon’s trademark, continuous webbing.

Adjustments to the Halcyon Cinch Adjustable Harness occur by simply sliding the harness through a unique assembly. You can even easily adjust the fit in or out of the water with a simple push or pull.

If you need a quick way to get out of your dive system or if you regularly change the thickness of your diving suit, Cinch Adjustable Harness will change the way you dive.

Halcyon Cinch

The Halcyon Cinch is specifically designed for Halcyon backplates and therefore does not fit all backplates.

  • Cinch adapter plate
  • Halcyon Harness Webbing
  • Separate left-hip D-ring assembly
  • Extension bolt
  • Bolts kit four stainless steel bolts with weldmate nuts
  • Right-hip light retainer assembly
  • Weight pocket attachment (pair) which allows the secure harness webbing to slide freely without affecting the placement of the light, ACB or D-ring.
  • Quick-adjust crotch strap

Halcyon Backplate

As with most Halcyon products, an immense amount of behind-the-scenes work is required to create a plate we proudly sell.

Halcyon backplates have been refined to provide the highest-quality finish and materials available. Small details, like the unique bends near the bottom of the plate, create an ergonomic curve, increasing diver comfort. Meanwhile, the precise fabrication process ensures the quality you have come to expect from Halcyon.

Specially designed for mating with all Halcyon and conventional wings, the Halcyon Backplate is available in 3mm Stainless Steel and Aluminum. The utility holes allow easy mating with the optional MC Storage Pak to stow an SMB or to fit a drysuit inflation system.

Steel Backplate

  • Constructed from high-grade, polished 304 stainless steel
  • Bare backplate weight: 2.22kg
  • Size: 26cm x 39.3cm

Aluminium Backplate

  • Constructed from high-grade hard-coat aluminium
  • Bare backplate weight: 0.77kg
  • Size: 26cm x 39.3cm

Download the Halcyon Buoyancy Compensator Owners Manual

SKU: 10.510.111