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Product Description


The S40 wing system has been designed to give total flexibility to divers wishing to adapt their kit configuration for different diving set ups. 

Custom Divers is well-known for its quality product range which meets the needs of all levels of diving - from entry-level to advanced. The Custom Diver S40 wing system is perfect to take divers on their journey from single and twin-set through to rebreather diving. The S40 system package also includes one single cylinder adaptor and two cylinder cam belts.

The S40 is a single bladder system housed in a durable but flexible 1000 Cordura fabric envelope with a 40lbs lift capability. This wing has four hose routing slots to allow hoses/gauges to be run on the inside of the wing, it also has many hose retaining tabs stitched to the envelope for stowing away hoses/accessories.


With a choice of a stainless steel or aluminium back plates, the total system including wing, harness and a choice of stainless steel or aluminium back plates, weighs 4.6Kg - 2.60Kg respectively.

S40 Plates H400 x W265 mm
CDWABPDB - Dog Bone Shape (aluminium) 0.40 Kgs 0.88 Lbs
CDWABP40 - Standard (aluminium) 0.80 Kgs 1.76 Lbs
CDWS40BP - Standard (stainless steel) 2.40 kgs 5.29 lbs

The S40 wing system is fitted with a three-part harness which is fully adjustable to fit all sizes.  The harness is non-breaking but easily re-sized by adjusting through the stainless steel welded 45deg D ring on each side. The harness is also dressed with shoulder pads for comfort and all accessories are easy to move to meet individual diving needs. All systems are delivered fully assembled and complete with four 45deg D-rings, crotch/scooter D-ring, which are again all fully adjustable.


* Stainless steel or Aluminium back plate.
* System (with s/steel back plate)weighs 4.6kgs.
* System (with standard aluminium back plate)weighs 3kgs.
* System (with dog bone aluminiuml back plate)weighs 2.6kgs.
* One single cylinder adaptor and two cylinder cam belts.
* 40lbs buoyancy capability.
*  Single Bladder system.
*  Hose routing slots.
*  Non-breaking three part fully adjustable harness system.
*  Crotch strap and scooter D-ring.
*  Low profile wing system.
*  Adjustable s/steel 45 deg D-rings for accessory stowage. 
*  Complete systems are supplied dressed with back plate, harness shoulder pads,
    two adjustable s/steel 45 deg D-rings  crotch strap and scooter D-ring

and two adjustable 45deg welded d-rings, One single cylinder adaptor and two cylinder cam belts.

Optional accessories suitable for use with the S40, tank bands comfort back pads, pockets, weight pockets etc..


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Customer reviews

(3 Customer reviews)
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I had a custom diver double bladder wing which had to be sent too the graveyard so was not so sure a single bladder would be up to the job but it’ s just as good as the old wing if not better highly recommended it

It’s fab

Mark peck | Surrey | April 2022


The S40 by Custom Divers is a fantastic system that has managed to cover all the range of diving I conduct, be it a single cylinder for teaching to Rebreather diving. The one piece adjustable harness is a breeze to slip on and off, and isn’t too crowded over the front. The reason for coming to the S40 over other brands was due to the reliability of my old Custom divers wing. Overall their customer service was fantastic over the phone and resolved an issue with the shipping the next day, loving Custom Divers and the S40 system so far.

- Henry Turner, BSAC member and Drysuit Instructor

Henry Turner | UK | April 2022


I’ve been diving for over 30 years and have always dived with single cylinders. Last year I decided to move on to twins, and I started to look around for a wing system. I did a lot of looking around and research and after many hours’ time spent, I decided to opt for the custom divers S40 wing. I have found it very comfortable to wear, easy to use and positioning in the water is excellent.

- Graham Coulson, BSAC member and Advanced Instructor

Graham Coulson | UK | April 2022

3 Customer Reviews


S40 Wing System

£518.00 £431.67 (ex. VAT)

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