A combined wing-harness - don't even know what's the proper name of this thing (many pics)

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fatgeorge

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Location
usa
# of dives
25 - 49
Diving with my homemade soft backplate and the homemade wing made me thinking why not combine them together? This makes it slightly lighter due to less fabric, and stronger since the harness becomes part of the wing. And at least in my case (warm water rec diving only), I see no benefits in separating them: the parts would likely wear out similarly at the same time, if I cut the wing I'll patch it myself, and if I cut it really bad, it takes 4hrs to make a new one from scratch.

On the other hand, I did not want to make a BCD because I like the donut shape of the wing, I like the crotch strap, and I do not like plastic buckles which tend to break when you put the stuff in your backpack, and the airline baggage handlers play soccer with it (or whatever else they do).

The total cost was about $50 for this one:

Materials:
- 1680 cordura (you'd need 1/2 yard) - about $7 cheapest;
- 1 yard x 12cm polyester/cordura (I used a scrap from other jobs) - otherwise dunno, $2?
- Intex 24" ring - $7 for 2 on Amazon
- 2" webbing for harness, crotch strap and connections. I used "Teceum 2 Inch Webbing" from Amazon. $14 for a roll which should be enough to make 10+ harnesses. I used cuts of Halcyon webbing for harness, and stiffness makes it easier to get in/out but this isn't necessary, my previous soft BP used Teceum and I had ~30 dives on those without issues.
- the power inflator assembly ($15)
- two dump valves from Aliexpress, one used as dump valve, another used as bladder flange - $10 for 2
- grommets, etc.
- a basic sewing machine with a #100 needle.

Attached the template. Comparing to previous wing I made it more squarish - it looks uglier but it's much easier to sew and reinforce, which matters.

The Process:

1. Cut two pieces from the 1680 cordura.
20250815_173806.jpg


2. Follow the soft backplate guide to make a soft backplate from one of the piece (this will be the wing's back). Sew everything to a non-shiny side (which would face the inside of the wing), run the harness and side/crotch strap holders through the holes, so it is sewn on the back side but sticks from the front:

20250816_174555.jpg

I sew a handle and the tank strap - up to you if you need them. There's also a piece of webbing sewn in the middle between the tank strap holes.

3. Prepare the wing side (a 10cm wide cut) - put some grommets in it for the air/water to escape. My scrap cut was too short so I added the piece of cordura:
20250816_201547.jpg


4. Sew it inside-to-inside, with the parts currently facing outside to be inside in the complete wing:

20250816_205037.jpg
 

Attachments

5. Prepare the back zipper panel (lower part of the template). Sew a part of the zipper to it (make sure you sew the right part, in right direction and with right overlap) and THEN sew this back zipper panel to your backplate panel INSIDE SIDE (not the one with the harnesses and metal brackets!):
20250817_125932.jpg


6. This is where my wing differs tom @James79: cut a 5cm piece of the of the window of the top wing. Sew it so it faces down. Attach the other part of the zipper to the back zipper panel, zip it, then place the top panel over, and measure where the zipper should match. Mark/fix the zipper and sew it to the top panel side:
20250817_125940.jpg


(It adds complexity but it makes the ring expand only in one direction, not in both directions).

At this moment the top part is not yet sewn to the wing - I found it's much easier to sew it this way, as sewing the zipper on a complete wing is painful.

7. Align the top part over, and sew it to the side, again, inside to inside - all the face parts should be facing the inside of the wing - note that the back zipper panel is outside since it would be inside in the final wing:
20250817_153918.jpg

8. Reach out and extract the wing from the inside. Zip the zipper and ensure everything fits:
20250817_153918.jpg

9. Mark the holes for the dump and shoulder valve, cut the matching holes in the swim wing(I use the inflation hole as one of those).

20250817_163444.jpg
 
10. Attach the dump valve and power inflator, and do the leak check. If it leaks, tighten more.
11. Sew a crotch strap and attach everything to the harness.
20250817_174106.jpg
20250817_174112.jpg


The final version is 0.5lb lighter than soft backplate + wing, mostly because there's less material (basically there's no backplate anymore) and no connection screws.
 
This is awesome, your work is really, really nice! It looks super professional and well made. Excellent use of Halcyon webbing on designs that are increasingly removed from a DIR harness.

Curious to see how this shapes with a tank on it, and how it dives in the water. How thick and tough is the yellow tube? Something tougher like a real inner tube might be nice (see Rick Stanton's rig).
 
This is awesome, your work is really, really nice! It looks super professional and well made. Excellent use of Halcyon webbing on designs that are increasingly removed from a DIR harness.

Curious to see how this shapes with a tank on it, and how it dives in the water. How thick and tough is the yellow tube? Something tougher like a real inner tube might be nice (see Rick Stanton's rig).
It's basically 100% DIR harness if you don't look behind the shoulders :)

Shapes like a normal wing - the bladder you have in your wing likely looks very similar to the Intex ring, at least that's the case with my HOG wing. The yellow tube is thin but holds pressure well - I can stand on the inflated wing and it holds. I tried an inner tube too, but it is too thick/heavy - useful in cave/wrecks as it's much harder to cut, but in rec diving it's just extra weight to carry.
 
Very cool! I had thought about this, but never got to it and certainly didn't think through the details (which you obviously did!).
Now you gotta let us know how it does in practice!
 
I the common term for that is “BCD”😏 Or “Back inflate BCD without integrated weights or pockets”

Kidding aside, very nice work!
 
Hi @fatgeorge

What's the final weight? Could you show it with tank straps and with a tank attached? Thanks
The final weight of everything attached (including the harness, brackets and belt buckle but not including the tank straps) is 889 grams, ~2lbs.

I don't own any tanks, so that would have to wait until I get to the dive spot.
 
Very cool! I had thought about this, but never got to it and certainly didn't think through the details (which you obviously did!).
Now you gotta let us know how it does in practice!
Will know in a month or so as I just got back from a diving trip but used my previous (soft) BP + the made wing.
 

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