Halcyon Eclipse Single Tank Wing System
Halcyon Eclipse Single Tank Wing System
Halcyon Eclipse Single Tank Wing System
Halcyon Weight Pockets
Halcyon Eclipse Single Tank Wing System
Halcyon Single Tank Adapter
Halcyon MC Storage Pak
Halcyon Eclipse Wing

Halcyon Eclipse Single Tank Wing System

Sale price£860.00

The Halcyon Eclipse Single Tank Wing System, with integrated ACB Weight pockets worth £150 on their own, is our most popular single-tank recreational dive system and a one-size-fits-all BC solution for any level of diving. The Eclipse Wing System comes fully set up and ready to dive.

Wing Size & Backplate Type

Wing Size & Backplate Type

Upgrade to Weighted Single Tank Adapter

Upgrade to Weighted Single Tank Adapter


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 Eclipse Single Tank Wing System is a single-tank recreational one-size-fits-all BC system and comes fully set up with integrated weight pockets - the Halcyon ACB Weight System.

This clutter-free system is easily adjustable to suit any size, any type of diving and any thickness of suit a diver may be using.

The Halcyon Eclipse Single Tank Wing System is ideal for men, women and young divers alike and the stainless steel or aluminium backplate with a harness, stainless hardware and backpack can easily be moved to a twinset wing in the future by purchasing a separate wing only.

Halcyon Eclipse Wing System

Halcyon Eclipse Single Tank Wing System includes

  • Eclipse Wing (20lbs, 30lbs or 40lbs) with 22" Inflator inflator hose
  • ACB Integrated Weight Pockets
  • Aluminum or Stainless Steel Backplate with harness
  • MC Storage Pack and SS bolts
  • Single Tank Adapter (upgradeable to Weighted STA)

Halcyon Eclipse Wing

The Halcyon Eclipse Wing is a doughnut-design back-mounted Buoyancy Compensator (BC) allowing divers to enjoy perfect horizontal trim underwater and minimising in-water effort.

The Eclipse Wing is available in three lift capacities to maximise comfort and streamlining while accounting for various buoyancy requirements that result from differences in cylinder size, exposure protection, or equipment requirements.

A circular zipper around the inside of the Eclipse wing allows for easy inspection and replacement of the interior bladder if required. A drainage system in the bottom of the wing allows water to drain rapidly from the outer cover to minimise excess weight.

An inflator elbow strain relief constructed from two-inch nylon webbing minimises wear on this connection.

Female diver with Halcyon single tank wing

Which wing size? The Halcyon Eclipse wing comes in 20, 30 and 40lbs lift capacity and the amount of lift required by a diver depends on his/her kit configuration. Stretched out flat the Eclipse 30 measures 67cm x 46cm compared to the Eclipse 40 which is 70cm x 50cm.

The 30lbs wing is more suitable for a lighter profile diving rig such as a single 12L steel cylinder whereas the 40lbs is ideal for divers who want that "extra bit" of lift for emergency assistance or to carry heavier cylinder setups like a 15L cylinder.

  • Lifetime warranty on inner bladder RF welded seams
  • Available in three lift capacities: 20lbs, 30lbs and 40lbs
  • Outer shell 1680-denier ballistic nylon / Inner bladder 400-denier Nylon

Halcyon Backplate and Harness

The Halcyon Secure Harness fitted to the stainless steel or aluminium backplate allows for infinite adjustability, providing a perfect fit for all divers.

Whether you are diving wet or dry you will find the Halcyon backplate with a harness stable and well-fitted. The five-point system ensures a snug fit and eliminates tank roll and drift.

Halcyon Backplate and Harness

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.

Bent D-rings in the shoulder facilitate one-handed storage of accessories like backup lights or stage bottles. Complete adjustability of D-rings eliminates inappropriate attachment points.

The utility holes allow easy mating with the MC Storage Pak to stow an SMB or to fit a drysuit inflation system.

Which backplate to use?  While not set in stone, aluminium backplates are generally preferred by travelling or wet suit divers as they are lighter. The popular backplate for drysuit diving is stainless steel, where the additional weight is a benefit (spreading out the weight needed to compensate for buoyancy while taking it off the diver's waist).

  • Stainless steel: High-grade, polished 304 stainless steel
  • Aluminium: high-grade hard-coat aluminium
  • Bare backplate weight: Steel 2.22kg / Ali 0.77kg
  • Size: 26cm x 39.3cm

Halcyon Eclipse Components

Halcyon Single Tank Adapter

The stainless steel Halcyon Single Tank Adapter is designed to attach a backplate and single wing onto the single cylinder. The secure cam bands come with stainless steel buckles and Octogrip Pads to prevent sliding.

The Halcyon Single Tank Adapter plate itself is deep enough to add an optional weight. This optional 6lbs central weight can be removed if not required making it back to a standard single tank adapter.

Halcyon ACB Weight System

The integrated Halcyon ACB Weight System pockets are an ideal solution for divers seeking quick-release weight. Each weight pocket can hold up to 5lbs/2.3kg soft or hard weights.

The vertical orientation consumes less space and the side release buckle prevents accidental weight loss but can be quickly released. The removable weight pouch features an easy-carry handle.

A simple tri-glide connection secures the ACB pockets (Active Control Ballast) on the harness waistband and allows the mounting of a primary light behind.

Halcyon MC Storage Pak

The Halcyon backplate pocket is the most efficient means to store any of the various Halcyon inflatable markers with ease. Stowing your favorite lift device in a Halcyon Storage Pak provides a hassle-free storage place without compromising the ability for rapid deployment of a SMB or lift bag.

Not a fixed harness fan but still don't want breakpoints?
Check out our review of Adjustable Harness Systems without compromise

What is the difference between wing and BCD?

The low drag design of the wing spreads the air in a balanced way on the back of the diver, keeping the wing part of the compensator out of the way and offering unprecedented streamlining during a dive.

There are no air-inflated side panels or pockets as on traditional 'jacket type' BC's, avoiding a "legs down" position often caused by air to the side and front of the diver.

There are no restrictions on the diver's chest - making it extremely comfortable, with no chest compression, and also allowing one size to fit all with no hassle.

The advantages of a wing system over a "jacket type" BC are numerous. The Halcyon Eclipse Wing System depends on a one-piece webbing harness looped through a sturdy aluminium or stainless steel backplate that should last many lifetimes.

Once donned, a webbing crotch strap can be utilised to keep the whole system in place with minimum movement.

The continuous loop harness prevents the frustrating lack of control found with typical buoyancy compensators. Once adjusted to the size and fit of the suit, there is nothing that can break or come loose.

Download the Halcyon Buoyancy Compensator Owners Manual

Confused on which wing to buy? Read our review on the Best Single Tank Wing Systems where we explain commonalities and differences comparing this wing to the other top wing systems.

SKU: 10.111.030

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