Red Hat Maximus and Sopras Sub

The Red Hat Maximus and Sopras Sub system parts are interchangeable



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The Red Hat Diving Maximus wing system , the new breed of wing style BCD,  designed to meet today's style of diving. The stainless or aluminium (optional) back plate combines with harness and bladder (wing) to create a fully-functional BCD with excellent and flexible buoyancy, proper trim, suitable weight, efficient propulsion and integrated life support. With pockets and other accessories to tailor it to your exact requirements from a lightweight travel wing to a 90lb double bladder wing there is a package for you.

Now integrated with the Sopras Sub range of wings to offer even greater choice and versatility.

See independent review from a respected journalist for an article in Scottish Diver


  • Padded  back plate, double mounting slot, crotch strap, perimeter mounting holes,  A choice of anodised colours on the aluminium backplate.

  • The stainless plate provides around 6 lbs of non-detachable weight evenly distributed across the diversí back.

  • Heavy-duty shoulder straps in combination with optional chest strap allow infinite adjustability. 

  • 316 stainless D-rings.

  • Two dump valves located at the bottom, rear of the horseshoe bladder. One on the 30lb doughnut bladder.

  • Adjustable waist band with  a quick release, stainless buckle provides.

  • Lift Capacity: 30lb, 50lb, 66lb, 66lb double, 90 lb or 90lb double.

  • 840 Denier Nylon backed to prevent abrasion and punctures. 

  • 1500 denier cordura on the Sopras Sub 60 and 60+60

  • You choose, type of harness, (Base, Sport or Premium) type of back plate, size of wing.

  • Available as extra, Cargo and weight pockets

  • The unique elastomeric bands (use is optional) assist in deflation, but still allow the diver to orally inflate the BC. Sopras Sub have silicone tubing. Optional for the Red Hat Diving wings.
  • Bands evenly compress the BC, eliminating the massive airshift associated with non-banded BCs that typically occurs when changing body plane.
  • Typically retract the BC to a width less than the diversí shoulders, greatly reducing Drag and Snag potential.
  • By adding or eliminating bands in different parts of the BC, the diver can adjust:
    1. Lateral trim to compensate for stage bottles, cameras, etc.
    2. Horizontal trim e.g. head up, down or level.

     Components available separately or buy a package comprising harness, backplate and wing for a saving on all parts bought separately.



As this page was getting a bit cluttered all the pockets are now on a separate page. Click here for pocket page


Package prices

Please Note

All packages listed below comprises a harness, Red Hat Diving Stainless steel backplate, wing and lp hose/s. and represents a saving over all parts bought individually 

To see descriptions of all parts separately scroll down the page. The Red Hat Diving harnesses all include a crotch strap. The Sopras Sub ones don't. Scroll down the page for crotch strap options.

As there are so many options for mounting cylinders packages do not include cylinder mounting.  

If using cambands you will need one of the adaptor plates further down the page. These will allow cambands to be used for either singles or twins.

Travel tech 30. Weight without cambands, hose and side D rings but still with 4 ss D rings, 1 ss scooter ring and ss belt buckle just under 3kg.


Package prices, Comprise harness, stainless steel backplate and wing.

Each package listed below comprises:- harness, wing and stainless steel backplate and represents a saving over all 3 items bought separately. A description of all the components is below this chart.

If you want a package listed below but with an aluminium backplate this will reduce the price by £20.00.

Ring me on 01757702487 to pay by card.


Travel tech 30. Sport tech but with Poseidon style plastic backplate and custom made softpad A really smart and light travel wing.


DIR harness Stainless steel backplate and Red Hat Maximus 30lb wing £239.00
DIR 50 £249.00
DIR 66 £279.00
DIR 66+66 £379.00
DIR 90 £259.00
DIR 90+90 £309.00

Sopras base tech harness and Red Hat Maximus 30. 


Sopras base tech 50


Sopras base tech 66


Sopras base tech 66 + 66


Sopras base tech 90


Sopras base tech 90 + 90


Sport  30 Maximus harness and wing


Sport  50


Sport  66


Sport  66 + 66


Sport  90


Sport  90 + 90


Premium  30. Maximus harness and wing


Premium  50  Maximus harness and wing


Premium  66 Maximus harness and Sopras Sub wing


Premium  66 + 66 Maximus harness and Sopras Sub wing


Premium  90  Maximus harness and wing


Premium  90 + 90  Maximus harness and wing




90lb wingRed Hat Diving . Single or double



1680 denier NYLON, backed to prevent abrasion and punctures.

bcd 90lb wing-single-large_0712053854.jpg (18453 bytes)


Inflator hose included although not shown



  • Maximus outer shell uses 1680 denier NYLON with PVC backing to prevent abrasion and punctures on all BCís.
  • We then add an inner bladder constructed from the same puncture-resistant 210-denier Nylon TPU inner
  • Bladder capacity: 90 lbs.
  • Maximus wing has 2 dump valves.
  • A semi-circular zipper around the inside of the wing allows for easy inspection and replacement of the interior bladder.
  • Maximus wing 90 lbs suitable for double tank diving
  • "Trap-door" drainage system allows water to drain rapidly from the outer cover to minimize excess weight and diver effort reboarding the dive boat.
  • The double bladder wing has an extra bladder with inflator and two dump valve

£169.00 single  



 £220. double



 Sopras Sub  66lb or 66lb double




Inner bladder in 420 denier nylon with the outer in a super heavy duty 1500denier cordura. 12 surgical tubes wrapped around the bladder to correct balance, speed up deflation and reduce water resistance.

Available in single or double inner


60lb wing



60 + 60


50lb wing


IMG_4210.JPG (535358 bytes)

click thumbnail for larger pic

50lb wing. description as 90lb except for lift.

Quote from P.K. "excellent product this is replacing my OMS bladder.



30lb wing

30lb wing. As above for materials and specification but without the bands and 30lb lift.


30lb wing spares
Outer casing  £81
Inner bladder £36.00
Inflator assembly complete £36.00
manual oprv £3.50



Stainless back plate 

The foundation for all wings is a good quality backplate. The Red Hat Diving backplate will last you a lifetime.

All the holes and slots you are likely to need.

The latest batch have "RED HAT" laser cut down the spine. Doesn't make any difference to its use but I had one whinger who complained because it wasn't the same as the pic

Made in UK from 316 marine grade, laser cut and rumbled to take off all sharp edges. Gives a dull slightly matt look. Some of the plates have slight marks where they have rubbed against each other in the rumbler but to rumble each one individually would put the price up. £79.00

       3mm     2.3kg/5lbs






UK made £79.00 

Aluminium back plate

Aluminium back plate with all the slots and holes you need to suit any configuration of twin or single cylinders. weight 760 grams. 

Also available Sopras Sub in silver but with fewer holes and slots. See DIR harness picture below.



 Poseidon type plastic backplate

 Fits all harnesses except the Premium. A good looking piece of kit and lightweight for travel. Optional soft pad.



Without soft pad £26.00
With soft pad £35.00

  DIR harness

 DIR harness INCLUDING backplate.

2 S.S. D rings and keepers and belt buckle.

Includes crotch strap even though not shown.

Matches any of the wings.  

Aluminium backplate available in black, blue, red or silver.

If you have a preference let me know when paying

Harness and stainless steel backplate. Sopras Sub (pictured) or Red hat Diving   £99.00

Harness and aluminium backplate   £73.00

Harness and Poseidon type backplate   £59.00

Sopras Sub adjustable harness

 Basic harness with shoulder strap adjustment. 

Including backplate

Shown with Sopras Sub backplate.

Because this has the D rings sewn on after assembly it is only available with a limited choice of backplates.

Current stock is with black aluminium backplate only.

Crotch strap included although not shown.



Sopras Sub Base tech harness

Includes 2 pockets as shown

 Sopras Sub harness shown mounted on stainless steel backplate (not included)

The Sopras Sub harness has double D ring locks on the shoulder straps so can be adjusted when on but does not come apart like the conventional side release fasteners. Includes sternum strap, crotch strap and 2 pouches as shown. 2 D rings on each shoulder, 2 on the waist and all webbing ends have D rings fitted to facilitate easy adjustment.. 2 cargo pockets included.



Red Hat Diving Maximus Sport harness.

Sport harness. Harness only

Webbing harness plus two side release fasteners. One stainless weight belt buckle, chest strap, shoulder pads and D rings. Bought with a package or a back plate this will be already assembled but if bought separately you will have to do it yourself, unless you are collecting. Harness only. Does not include pockets shown in picture. The price has just gone up as this now includes soft pad.



Red Hat Diving Maximus Premium harness

Premium harness. Full de-luxe harness. Includes comfort pad. stainless buckle, crotch strap, This harness is a complete unit. The backplate slides in behind the soft pad.

Weight 2kg

See review

Comparable to Typical dive shop price
Apeks WTX £140-£150
OMS IQ £225
AP Inspiration £195
Dive Rite Transpac £205
Red Hat Diving Premium Harness £109







Click here for video showing assembly of Sopras Sub Comfort tech . Applies also to Red Hat Diving Premium harness





Maximus extras


As this page was getting a bit cluttered all the pockets are now on a separate page. Click here for pocket page

For full range of cam bands go to BCD spares



Cam band standard TCB-1  39" long with rubber anti slip pad and velcro fastening. Standard plastic buckle.




Cam bend  heavy duty TCB-2 39" long with rubber anti slip pad. stainless buckle.


Cam bend extra heavy duty TCB-3 39" long with rubber anti slip pad. stainless buckle.




Extra long cam band with separator block and two anti slip pads. Only available with standard buckle not stainless. 



Separator block. Used with two cam bands or (to stabilise a twin set if a twin boot is not used) See above for extra long band and block as a set. The picture shows the pinned version sold with the TCB 4.



Call first before ordering


Stainless twinning bands in 30mm 50mm or 60mm

171mm suits 10L and slim 12l

178mm suits standard UK 12l

203mm dumpy 12L and 15L

One pair of AISI316 marine grade  twinning bands

Stainless steel bolt set  all nuts, washers etc included.

Price per pair 30mm £46.50  




Price per pair 50mm £62.00





Price per pair 60mm £56.00



Adaptor plate  AP1

Convert easily from single to twins

Weighs 1kg approx

Latest version has a series of 3 holes at the top and a slot at the bottom. Suits hole centres from 24cm-31.5cm

316 marine grade stainless adaptor.  Bolts on behind the wing allowing the convenient fitting of twin cylinders using four cam bands and two separator blocks. Convert easily from singles to twins.

Suits most wings but particularly suitable for the Premium harness.

Laser cut and rumbled. Picture shows the Mk1. It has now been altered for even more versatility.

See latest version,



Single tank Adaptor plate 1 Piece     AP2

Ideal to use with either Sport or Premium  harnesses to fit 2 cambands for single tank use. Laser cut and rumbled.

The latest ones have the bottom 2 holes slotted and "RED HAT" laser cut down the spine similar to AP1

Comes with x2 nyloc nuts though the bolts may need cutting to length.




AP2+      2 of TCB-1 + 2 bolts sets

with 2 cambands and bolts. 



Adaptor plate  AP3 and bolts

pair of butterfly single tank adaptors. Includes bolts. An economical version of AP2

N supplied with nyloc nuts and hex head bolts, not  wing nuts and coach bolts as shown

  £19.00 per pair

Comfort pad


Comfort pad.  Neutrally buoyant. Suits all back plates and basic or comfort harness providing added comfort. Soft pad is already fitted to the Premium harness.




Silicone hose for wings. Priced per meter

out of stock

 As this page was getting a bit cluttered all the pockets are now on a separate page. Click here for pocket page

Replacement inflator hose 

IFLP-1   27" £15.70

IFLP-2   30" £15.90
IFLP-3   33" £16.20
IFLP-4  35.5" (90cm) £17.70  

For full range of hoses go to Hoses


Complete Maximus inflator assembly with pull dump and hose. Most components available separately

Early models have fine thread. Later models have a coarse thread.

For all inflator components and assemblies see bcd spares

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