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Platinum Series SLS Windsurf Boom
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THE MOST USED BOOM AMONG PWA COMPETITORS
Imagine a boom which is virtually indestructible even after years of use and that allows for longer sessions on the water, speeds up your rigging, allows you to cover all your sails with just one boom and is lighter yet at the same time stiffer than anything you have ever experienced. A mission impossible, one might say as some of these targets are even contradictory.
FULL DESCRIPTION
For us this dream started in 1997 with the first carbon boom we have ever built. And now almost 3 decades later we have the feeling that we have finally achieved all of these goals with the latest PLATINUM SLS boom range. We consider these booms to be the final evolutionary stage in the development of carbon booms.
With nearly 3 decades of Maui development and Munich engineering DUOTONE has the greatest experience in carbon booms in the industry.
The new PLATINUM SLS lineup underlines this by being the most feature-packed carbon booms out there. The goal was to create the highest performing booms combined with the best ergonomics, unmatched stiffness and fastest operation. Here comes a rundown of these feature monsters:
FULL CUSTOM CONSTRUCTION We use 100% highest-grade T800 prepreg carbon and our exclusive SENTEX® resin impregnated with silicon nano-spheres.
SEGMENTED CROSS-SECTION TECHNOLOGY This results in a quantum leap in weight >< stiffness >< durability >< grip-ergonomics/comfort With weights between 1.85 to 3.10 kg (depending on the length) the PLATINUM SLS are the lightest booms on the market (except our own PLATINUM AERO booms :-) The secret of these super-light weights lays in the SEGMENTED CROSS-SECTION TECHNOLOGY. Instead of the usual round cross section the PLATINUM SLS feature a super sophisticated transition of different cross sections:
- The SQUARE FRONT SECTION featuring a massive wall-thickness increases the stiffness by approx. 30%
- The OVAL TAIL SECTION increases the lateral stiffness by another 30%
This results in the new PLATINUM SLS not just been the lightest but also stiffest booms out there. Another advantage of the OVAL TAIL SECTION is the reduced tail weight. Due to the leverage effect this has a tremendous effect on how light the PLATINUM SLS feels in your hands (= sailing weight).
GRIPPING DIAMETER: GRIP COMFORT VS. STIFFNESS With the diameter in the gripping area you are dealing with 2 contradictory facts:
- The thinner the diameter, the more comfortable and less tiring it is to hold on to
- The thinner the diameter the softer the boom becomes
The enormous stiffness generated in the front and back allowed to use smaller diameters than any other boom in the gripping area. Together with the OVAL INSIDE GRIP SECTION this leads to an unmatched gripping comfort and reduced fatigue - sail longer and no more cramped fore-arms!
60 CM EXTENSION RANGE ON ALL BOOMS
- Just 1 boom to cover all your Wave sails
- Just 1 boom to cover all your Freemove sails
- Just 2 booms covering all racing disciplines and sizes
DISCIPLINE SPECIFIC BEND-CURVES All our bend-curves are designed to allow your front and back arm to sit in a natural ergonomic position while sailing. This position varies with the type of sail (Wave >< Freeride >< Race) so each boom size needs to be developed accordingly.
- The 140 Mega Slim and 160 lengths have received a completely new bend curve called NEW SCHOOL 2.0. For the first time it combines the advantages of a straight new school curve (no overstretching of the front hand) and a performance oriented curve (wider distance of the tubes in the center to avoid the sail profile from getting distorted).
- For the 170 and 190, we use the same tried-and-tested race curves that have proven themselves in countless race victories over the last decade.
iFRONT 2.0 The lightest moulded front-end on earth
PROTECTION GRIP INSERT High density EVA grip inserts on the outside front arch for maximum abrasion resistance during rigging
EXTERNAL TAIL FITTINGS External tail fittings provide 3 main advantages compared to integrated fittings:
- Lower weight
- Stronger tail end. No weak points in the mould
- Exchangeable
INDIVIDUAL TAIL FITTINGS
- The sizes 140 and 160 come with our patented VTS TAIL fitting which visually indicates the correct outhaul tension (DUOTONE sail required)
- The sizes 170 and 190 come with the iTAIL RACE fitting which allows loop-loop-go (the fastest way to rig your outhaul) even when used with an adjustable outhaul system
TRIANGLE BEARING CONSTRUCTION Bearings in-between the rotational front-end and the monocoque carbon body prevent the front-end from „grinding down“ the carbon which ultimately leads to a broken boom.
2 YEAR UNCONDITIONAL WARRANTY We are fully convinced that the PLATINUM SLS booms are virtually indestructible. As a prove of testimony we back this up with our unmatched 2 YEAR UNCONDITIONAL WARRANTY.
Now is it worth it? Well it’s true carbon booms in general are ridiculously expensive. But the brand-new PLATINUM SLS also might very well be the last boom you’ll ever buy.
KEY FEATURES
PREMIUM MATERIAL
100% T800 Carbon Prepreg + SENTEX® Resin
THINNEST AND STIFFEST BOOM
The thinnest and stiffest carbon boom in existence
FRONT-END
iFRONT 2.0 - The lightest moulded Front-End on earth
SQUARE FRONT SECTION
Increases the overall stiffness by 30%
OVAL INSIDE GRIP SECTION
Unmatched gripping comfort and reduced fatigue
OVAL TAIL SECTION
Increases the lateral stiffness by 30%
- PRODUCT INFORMATION
- FULL DESCRIPTION
- KEY FEATURES
- DELIVERY & RETURNS
THE MOST USED BOOM AMONG PWA COMPETITORS
Imagine a boom which is virtually indestructible even after years of use and that allows for longer sessions on the water, speeds up your rigging, allows you to cover all your sails with just one boom and is lighter yet at the same time stiffer than anything you have ever experienced. A mission impossible, one might say as some of these targets are even contradictory.
For us this dream started in 1997 with the first carbon boom we have ever built. And now almost 3 decades later we have the feeling that we have finally achieved all of these goals with the latest PLATINUM SLS boom range. We consider these booms to be the final evolutionary stage in the development of carbon booms.
With nearly 3 decades of Maui development and Munich engineering DUOTONE has the greatest experience in carbon booms in the industry.
The new PLATINUM SLS lineup underlines this by being the most feature-packed carbon booms out there. The goal was to create the highest performing booms combined with the best ergonomics, unmatched stiffness and fastest operation. Here comes a rundown of these feature monsters:
FULL CUSTOM CONSTRUCTION We use 100% highest-grade T800 prepreg carbon and our exclusive SENTEX® resin impregnated with silicon nano-spheres.
SEGMENTED CROSS-SECTION TECHNOLOGY This results in a quantum leap in weight >< stiffness >< durability >< grip-ergonomics/comfort With weights between 1.85 to 3.10 kg (depending on the length) the PLATINUM SLS are the lightest booms on the market (except our own PLATINUM AERO booms :-) The secret of these super-light weights lays in the SEGMENTED CROSS-SECTION TECHNOLOGY. Instead of the usual round cross section the PLATINUM SLS feature a super sophisticated transition of different cross sections:
- The SQUARE FRONT SECTION featuring a massive wall-thickness increases the stiffness by approx. 30%
- The OVAL TAIL SECTION increases the lateral stiffness by another 30%
This results in the new PLATINUM SLS not just been the lightest but also stiffest booms out there. Another advantage of the OVAL TAIL SECTION is the reduced tail weight. Due to the leverage effect this has a tremendous effect on how light the PLATINUM SLS feels in your hands (= sailing weight).
GRIPPING DIAMETER: GRIP COMFORT VS. STIFFNESS With the diameter in the gripping area you are dealing with 2 contradictory facts:
- The thinner the diameter, the more comfortable and less tiring it is to hold on to
- The thinner the diameter the softer the boom becomes
The enormous stiffness generated in the front and back allowed to use smaller diameters than any other boom in the gripping area. Together with the OVAL INSIDE GRIP SECTION this leads to an unmatched gripping comfort and reduced fatigue - sail longer and no more cramped fore-arms!
60 CM EXTENSION RANGE ON ALL BOOMS
- Just 1 boom to cover all your Wave sails
- Just 1 boom to cover all your Freemove sails
- Just 2 booms covering all racing disciplines and sizes
DISCIPLINE SPECIFIC BEND-CURVES All our bend-curves are designed to allow your front and back arm to sit in a natural ergonomic position while sailing. This position varies with the type of sail (Wave >< Freeride >< Race) so each boom size needs to be developed accordingly.
- The 140 Mega Slim and 160 lengths have received a completely new bend curve called NEW SCHOOL 2.0. For the first time it combines the advantages of a straight new school curve (no overstretching of the front hand) and a performance oriented curve (wider distance of the tubes in the center to avoid the sail profile from getting distorted).
- For the 170 and 190, we use the same tried-and-tested race curves that have proven themselves in countless race victories over the last decade.
iFRONT 2.0 The lightest moulded front-end on earth
PROTECTION GRIP INSERT High density EVA grip inserts on the outside front arch for maximum abrasion resistance during rigging
EXTERNAL TAIL FITTINGS External tail fittings provide 3 main advantages compared to integrated fittings:
- Lower weight
- Stronger tail end. No weak points in the mould
- Exchangeable
INDIVIDUAL TAIL FITTINGS
- The sizes 140 and 160 come with our patented VTS TAIL fitting which visually indicates the correct outhaul tension (DUOTONE sail required)
- The sizes 170 and 190 come with the iTAIL RACE fitting which allows loop-loop-go (the fastest way to rig your outhaul) even when used with an adjustable outhaul system
TRIANGLE BEARING CONSTRUCTION Bearings in-between the rotational front-end and the monocoque carbon body prevent the front-end from „grinding down“ the carbon which ultimately leads to a broken boom.
2 YEAR UNCONDITIONAL WARRANTY We are fully convinced that the PLATINUM SLS booms are virtually indestructible. As a prove of testimony we back this up with our unmatched 2 YEAR UNCONDITIONAL WARRANTY.
Now is it worth it? Well it’s true carbon booms in general are ridiculously expensive. But the brand-new PLATINUM SLS also might very well be the last boom you’ll ever buy.
PREMIUM MATERIAL
100% T800 Carbon Prepreg + SENTEX® Resin
THINNEST AND STIFFEST BOOM
The thinnest and stiffest carbon boom in existence
FRONT-END
iFRONT 2.0 - The lightest moulded Front-End on earth
SQUARE FRONT SECTION
Increases the overall stiffness by 30%
OVAL INSIDE GRIP SECTION
Unmatched gripping comfort and reduced fatigue
OVAL TAIL SECTION
Increases the lateral stiffness by 30%
Life is complicated enough, so we've made returning items as simple as possible for mainland UK. Head to your account and click the link for returning items and we'll take it from there. For exchanges, simply select "refund" and re-order the required item again. We'll refund the very moment it's returned to us.
For NI, Channel Islands, Europe and Rest of World, you the customer will need to return the item to us as collections are not possible.
For item's where we've made a mistake or the item is faulty - we'll refund all postage costs on receipt of postage receipt and dispatch replacements items FOC. For items simply no longer required or where you the customer has ordered the incorrect size or product, return postage will not be refunded and dispatching out will be chargeable.

Let customers speak for us
from 127 reviewsAfter purchasing this wing earlier this year it has noticeably made tacks so much smoother and overall upgraded my riding. I bought the 3.0 and 5.0 metre and my 3.0m flies very well in both underpowered and overpowered conditions
I purchased the Unit SLS 2025 wing earlier this year and it has made tacks so much smoother and upgraded my riding. I also bought the Duotone Carve 3.0 D/LAB 2025 with the 800 front wing and once again it’s been a game changer, having a great amount of glide which works perfectly for both wingfoiling and kitefoiling!
All thanks to the H2O team that always have loads of knowledge, passion for watersports and go above and beyond!
Preferring not to throw away my (now discontinued) North Red boom which had a broken cuff, I called H2O to see if there was any way to salvage it. I spoke with Matt who was very knowledgeable and helpful but came off the phone somewhat resigned that I might not be able to get the part. However to my surprise a little while later I was blown away (with a force 5) when I got a call to tell me he’d sourced one for me. And here I am now, a week on, with all the bits I need to get back on the water; whoever said people don’t have time to help others! So the moral of this story is have a little faith and try H2O!
Preferring not to throw away my (now discontinued) North Red boom which had a broken cuff, I called H2O to see if there was any way to salvage it. I spoke with Matt who was very knowledgeable and helpful but came off the phone somewhat resigned that I might not be able to get the part. However to my surprise a little while later I was blown away (with a force 5) when I got a call to tell me he’d sourced one for me. And here I am now, a week on, with all the bits I need to get back on the water; whoever said people don’t have time to help others! So the moral of this story is have a little faith and try H2O!
Ordered a 1350 Glide 2.0 to progress on to from my 1750 aero free. Being a heavier rider I've found it's now my go to foil wing, initially a bit harder to get on the foil compared to the aero free but once up it feels completely effort less! Thanks to the team for getting me sorted out 🤙
James, Matt and the H20 Team are absolute gurus of the water sports industry, friendly, helpful and knowledgable. They will always give the right advice and come up with superb deals and first class support, thanks guys for always helping me to make the right decisions over the last 20 + years!
My new mast arrived from H20. Sports and it was so worth the wait. You immediately notice how much stiffer it is compared to the v1 carbon version when riding. The foil feels more responsive and direct .It also glides longer in transition s and riding bumps.
Its well worth the upgrade in my opinion.
I bpught this wing to replacr my Unit 5.5 m wing for tje summer breezes as i never liked using big wings. This wing is really powerful in the low end and allows you to pump really efficiently to get on foil with a bit of technique.
You can size down by half a metre with this wing compared to a Unit.
Its still fast and so good iwhen you roll into a tack.
Perfect quiver would be a 3 m , 4m & a 5 m in the Float for all conditions.
Its a great price too as lower than Dlab and SLS wings but with great performance.
As one of the H2O riders I have really enjoyed the variety of kit H2O have available. Including the Duotone sky surf 35Ltr which quickly become my favourite board because of its shorter and thicker shape while being low in litres it still allows me to get it out the water in some lighter winds. However it comes into its own when the wind is strong and the waves are pumping with its incredible manoeuvrability. Paired with the Duotone units (that are light weight and precisely balanced) wave riding is a dream.
I've been one of those riders who thought one board was enough. Turns out a downwind board has opened up so many more days on the water. I cant believe how easy this beast gets going in 6 knots. I use my 8' board with the 1100 and 1595 Duotone Glide. It's like a whole new sport. Whilst I've tried paddling up, I think I'll stick to winging for now (although can't wait to try the Stash Parawing).
Lots of the benefits of the DLAB Unit but without the price tag. Strong, light, and powerful. It's been great in all conditions, handles really well when over powered. I bought the 3.5, 4.5 and 5.5 to cover all eventualities. Personally I prefer the handle option which works really well with my harness. Matt and the team really helpful in deciding on the sizing.
I absolutely love my 65L/4'9" Sky Style SLS Wing Board. I'm about 88kg and it suits me for most conditions. Easy planing, great in waves, sold for jumping. Incredibly light, especially when paired with a DLAB Carve 800 foil and mast, which makes it a great overseas travel option too. Carbon finish and colours look great (picture on website doesn't do it enough justice). Not a big fan of the front foot straps overlapping but going to put the new v-strap on which will sort this.
I usually go for the DLAB or SLS Concept Blue Units but this wing has had great reviews so thought I'd give it a try. Great power delivery and handling, really light weight but solid construction. The wing’s dihedral and tension profile give amazing flight balance so although designed for wave/downwind, I think this wind would suit all levels. Bought teh 5m for the summer but bought a 4 ready for the winter swell.
The 2025 Unit is a good allrounder fast, stiff & light wing.
I prefer to size down my Unit as they are really grunty wings.
They also have great top end aswell and the white colourway looks cool.
I have ridden the Skybrid SLS 70 litre and its a great hybrid board between a short wave freesyle board and a mid length shape.
Easy to get up though its narrower than my previous boards and does require a little more effort.
The big advantage is the early planing speed to get on foil and the glide.
Its a good allrounder in waves and flat water.