Duotone Duke SLS 2027
YOU KNOW THE FEELING: ONE SAIL FOR FREEMOVE AND FREESTYLE DAYS, ANOTHER FOR WHEN THE SWELL BUILDS UP — AND THE WIND NEVER STICKS TO THE PLAN. THE DUKE SLS ENDS THE COMPROMISE. IT SENSES THE BOARD UNDER YOUR FEET AND SHIFTS ITS DRAFT TO MATCH, SO ON A HIGHER DRAG MULTI-FIN WAVE BOARD IT PULLS EVENLY FOR MAXIMUM CONTROL FROM THE FIRST BOTTOM TURN TO THE TOP OF EVERY CRITICAL SECTION. DROP IN AND COMMIT.
The DUKE SLS is Duotone’s 5-batten SLS sail for intermediate to advanced riders who combine Freewave and wave riding.
The DUKE SLS adapts its pull character to the board you’re riding. Rig it on a single-fin Freewave or small Freeride board and it produces a slight forward pull that keeps the session flowing. Put the same sail on a higher-drag multi-fin wave board and the pull distributes evenly across both hands, putting you in control on steeper, more critical sections. This windsurfing sail covers both scenarios without any setup change.
That versatility comes from the DEFINED DRAFT MOTION concept: a slightly forward draft position with precisely controlled flex. CARBON XPLY batten pockets lock battens and draft into a defined position with virtually no stretch, giving the sail the response of carbon battens while preserving the durability of glass battens to survive even gnarly washes. Additional CARBON XPLY reinforcement in the high-load top and tack areas, combined with a STRIPPED TO THE MAX panel layout, keeps the whole package noticeably light.
Low-end power is addressed by the BATTEN FREE CENTER concept. The larger gap between the foot batten and the batten above the boom makes the boom area easier to inflate, delivering the early planing response of a 4-batten sail with the control of a 5-batten. From gusty side-shore freewave sessions to proper overhead surf, the Duke SLS keeps you in control through every turn.
New for 2027: a fresh yellow/black colorway. The proven technology carries over unchanged.
Target rider: intermediate to advanced windsurfer
Best for: Freewave, wave riding, Jump N’ Ride, New School Freestyle
Key Features:
> CARBON XPLY batten pockets with DEFINED DRAFT MOTION concept for locked-in draft control
> BATTEN FREE CENTER concept: 4-batten low-end power in a 5-batten design
> STRIPPED TO THE MAX panel layout for minimal weight
> Chameleon pull character adapts to single-fin and multi-fin wave boards
> Sizes 4.2 to 6.2
ONE SAIL. EVERY BOARD, EVERY WAVE, EVERY GUST. RIG IT ONCE AND FINALLY THERE ARE NO BAD CONDITIONS ANYMORE.
| SIZE | 4.2 | 4.5 | 4.7 | 5.0 | 5.4 | 5.8 | 6.2 |
| BOOM MAX (CM) | 154 | 158 | 162 | 166 | 170 | 178 | 182 |
| VTS TAIL TENSION | Min +2 >< Max +4 | Min +2 >< Max +4 | Min +2 >< Max +4 | Min +2 >< Max +4 | Min +2 >< Max +4 | Min +2 >< Max +4 | |
| LUFF MAX (CM) | 374 | 388 | 404 | 418 | 432 | 440 | 452 |
| VARIO/FIX TOP | Fix | Fix | Fix | Fix | Fix | Fix | |
| BATTENS | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| WEIGHT (KG) | 2.50 | 2.60 | 2.70 | 2.80 | 2.90 | 3.05 | 3.20 |
| MAST TYPE (BEST/ALT.) | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD / GOLD>SILVER |
| MAST GEO (BEST/ALT.) | RDM/– | RDM/– | RDM/– | RDM/– | RDM/– | ||
| MAST LENGTH (BEST/ALT.) | 370/– | 370/– | 400/– | 400/– | 400/– | 430/– | 430/– |
Duotone Duke SLS 2026
IMAGINE MELTING THE JUMP N’ RIDE FREEMOVE QUALITIES OF THE DUKE WITH THE WAVE CAPABILITIES OF THE SUPER HERO D/LAB. MISSION IMPOSSIBLE YOU MIGHT SAY – BUT FOR US, THIS WAS THE FUNDAMENTAL MOTIVATION BEHIND THE DEVELOPMENT OF THE BRAND-NEW DUKE SLS!
The comeback of the DUKE as a 5-batten Jump N’ Ride sail 2 years ago was a major success. It instantly became the most used and popular sail in the ION CLUB and DUOTONE PRO CENTERS worldwide.
Now with the DUKE SLS we take this concept to the extreme! But instead of just swapping the materials, we have developed this sail from scratch to utilize the full potential of the materials and to give this sail an additional character. Because depending on the board, the DUKE SLS behaves like a chameleon:
- On lower drag single-fin boards (e.g. Freewave or small Freeride boards) the DUKE SLS has a slight forward pull (similar to the Original DUKE).
- On higher drag multi-fin wave boards, however, the pull is evenly distributed over both hands. On such boards, the new DUKE SLS has a very similar feel to the SUPER_HERO D/LAB making it really suitable even for proper wave sailing conditions.
But how was this made possible?
Well, it is a combination of an extremely sophisticated sail concept (3d-shaping, twist pattern and profile distribution) and the use of CARBON XPLY batten pockets. The DUKE SLS features a slightly forward draft position, but with a defined flexibility. We call this DEFINED DRAFT MOTION CONCEPT. Normally, this is a no-go for sails with “soft” epoxy battens, as any draft movement reduces the wind range. But this is where the CARBON XPLY batten pockets come into play: as Carbon has virtually no stretch, it locks the battens thus draft in its defined position – actually pretty similar to a Carbon batten.
Believe it or not, in this way we virtually merged the advantages of the Original DUKE with those of the SUPER HERO D/LAB creating the ultimate 5-batten Wave><Freewave sail.
Ok, so the DUKE SLS feels similar to the SUPER_HERO D/LAB – but what about the low end power? 5-batten wave sails offer great control, but usually suffer in the low-end as more battens make it harder for the wind to inflate the sail. That’s why we have incorporated the BATTEN FREE CENTER concept that we already use on the SUPER_HERO and the Original DUKE. Instead of the usual even batten distribution, the DUKE SLS features a bigger gap between the foot batten and the batten above the boom. This makes the boom area easier to inflate, resulting in a similar low-end power to a 4-batten sail.
But it’s getting even better: due to the additional use of CARBON XPLY in the high load top and tack areas plus a STRIPPED TO THE MAX panel layout we were able to bring down the weight by a whopping 400-500g compared to the Original DUKE.
So what keeps you waiting – DUKE SLS the first sail morphing the advantages of a Freewave sail with a truly capable down the line wave sail.
Item-no. 14250-1205
| SIZE | 4.2 | 4.5 | 4.7 | 5.0 | 5.4 | 5.8 | 6.2 |
| BOOM MAX (CM) | 154 | 158 | 162 | 166 | 170 | 178 | 182 |
| VTS TAIL TENSION | Min +3 >< Max +5 | Min +3 >< Max +5 | Min +3 >< Max +5 | Min +3 >< Max +5 | Min +3 >< Max +5 | Min +3 >< Max +5 | |
| LUFF MAX (CM) | 374 | 388 | 404 | 418 | 432 | 440 | 452 |
| VARIO/FIX TOP | Fix | Fix | Fix | Fix | Fix | Fix | Fix |
| BATTENS | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| WEIGHT (KG) | 2.50 | 2.60 | 2.70 | 2.80 | 2.90 | 3.05 | 3.20 |
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MAST TYPE (BEST/ALT.)
|
PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD | PLATINUM / GOLD / GOLD>SILVER | |
| MAST GEO (BEST/ALT.) | RDM/– | RDM/– | RDM/– | RDM/– | RDM/– | RDM/SDM | |
| MAST LENGTH (BEST/ALT.) | 370/– | 370/– | 400/– | 400/– | 400/– | 430/– |