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Description

We present the Duotone Duke sail.

OUR MOST SUCCESSFUL 5-BATTEN SAIL OF ALL TIME IS BACK! COMBINED WITH THE LIGHT DONE RIGHT CONSTRUCTION AND ALL THE OTHER DESIGN CONCEPTS DEVELOPED OVER THE LAST TEN YEARS, THE REBIRTH OF THE DUKE SETS A NEW STANDARD FOR WIND-RANGE-ORIENTED HANDLING SAILS.

Our most successful 5-batten sail of all time made a sensational comeback in 2023, and for 2025 we’ve given it a facelift!


The DUKE combines our LIGHT DONE RIGHT construction with all the other design concepts we’ve developed over the past ten years to set a new standard for wind-range-oriented handling sails.


The development of the DUKE was a 1.5-year project that always kept the end user at the center. As a starting point, we involved “real” end users who regularly use this type of sail, as well as our surf centers, to define a bucket list for the reincarnation of the DUKE. Here is the result and how it came about:


Maximum wind range, especially in shifting and/or very gusty conditions.

This is the most important factor and the biggest advantage when choosing a 5-batten sail. A simple rule of thumb is that more battens mean more control and a wider wind range. Normally, this has a negative effect on performance in the lower wind range, as more battens make it harder for the wind to fill the sail and make it less efficient to pump. That’s why we’ve adopted the BATTEN FREE CENTER concept from the SUPER_HERO. Instead of the usual even batten distribution, the DUKE has a larger gap between the foot batten and the batten above the Boom. This makes the boom area easier to inflate and increases stability at the top (due to the increased batten density in this area). The second disadvantage is that each batten increases the weight of the sail. This is why there has been a trend toward fewer battens in wave sails in recent years.


It feels super light in your hands, without falling apart after 1–2 seasons.

The lower weight of 4-batten sails was the main reason for the disappearance of 5-batten sails over the past decade. Fortunately, we’ve made some key design improvements over the last 10 years. The result of this development was the LIGHT DONE RIGHT CONSTRUCTION, introduced in 2022. By replacing the usual multi-layer reinforcements with a single layer of high-quality fabric and also introducing the ONE PIECE SLEEVE, the one-piece mast sleeve, we were able to reduce the total weight by 300 g. We are the only brand to have achieved these significant weight savings without reducing the thickness of the film and the XPly panels. This is the only way we can continue to guarantee our unmatched 5-year warranty. Another issue with reducing the film thickness is that the sail becomes spongy, as energy is lost due to increased stretch. This makes the sail feel heavier in your hands. Our sails are therefore not only on the They're lighter, but above all, they feel extremely light when you're out on the water. Because that's what really matters! Early


Planing performance even without excessive pumping

To achieve maximum glide performance, the DUKE features a high pressure point distribution combined with a deep profile that gets the board planing early.


Super neutral during maneuvers

To make tricks and turns as easy as possible, the sail should feel completely neutral in your hands during maneuvers. That’s why the DUKE is equipped with a pressure point positioned further forward. The forward pull cuts the power and shifts completely to neutral as soon as you open the sail or shift. This leads to a much higher success rate.


Good lift and control when jumping

The higher pressure point position also increases your airtime, as it generates lift, while the more forward-oriented pressure point helps you maintain control at all times.


Maximum range of use

One of the DUKE’s biggest advantages is its versatility. In bump-and-jump conditions, the Duke delivers pure excitement on your freewave board or, in a smaller size, for shredding on your freeride board. Thanks to its forward and high pressure point, it’s also well-suited for classic and even New School freestyle tricks. Last but not least, it’s a great sail for moderate wave and/or jump conditions, especially in gusty or challenging wind conditions. The new DUKE is thus a true all-around high-performance sail that challenges any handling-oriented sail.


Quick to rig

With all the features, markings, and tips we’ve developed over the past 40 years, it’s safe to say that no other sail can be rigged faster and more precisely than a DUOTONE sail. Even if you’re not a pro who sets up and trims your sail every day, you’ll still achieve the same perfect trim. Because only with the right trim can you fully harness the sail’s performance.


Similar feel to the larger freeride/performance sails

Another important factor is that all the sails in your quiver should have a similar feel or ride characteristics. This applies even to pros, because even they usually need a whole day to

get used

to a sail

that feels completely different. The main reason why sails feel different is the position of the pressure point in the sail. Fortunately, the DUKE also has a pressure point very similar to that of most modern freeride sails.


So you see, we’ve put all our know-how and experience into developing the most sophisticated high-performance Jump N’ Ride sail ever.

Key Features

DRAFT FORWARD
Forward pressure point for maximum neutrality during maneuvers >> leads to a much higher success rate
BATTEN FREE CENTER
Larger gap between the foot batten and the batten above the boom >> better loading (= planing power) in the fork area and improved stability in the upper sail area
LIGHT DONE RIGHT CONSTRUCTION
A significant weight reduction of 200 to 300 g without reducing film thickness, while maintaining the familiar durability and longevity!
VTS TAIL outhaul specs
Each sail features individually defined visual indicators for the correct clew tension (requires VTS TAIL Boom).
iROCKET 2.0
Individual batten tensions calibrated at the factory using torque
AVAILABLE IN HD
Also available as a mono-film-free HD version

SPECS

Size Luff Boom Extension Mast Weight
4.2 m² 380 cm 154 10/0 cm 370/400 RDM 3.0 kg
4.5 m² 390 cm 158 20/0 cm 370/400 RDM 3.1 kg
4.7 m² 404 cm 164 4 cm 400 RDM 3.2 kg
5.0 m² 412 cm 166 12 cm 400 RDM 3.3 kg
5.4 m² 434 cm 170 4 cm 430 RDM 3.4 kg
5.8 m² 440 cm 178 10 cm 430 RDM 3.5 kg
6.2 m² 452 cm 182 22 cm 430 RDM/SDM 3.6 kg
6.7 m² 466 cm 190 36 cm 430 SDM/RDM 3.7 kg
reviews

Duotone Duke SLS Sail

Regular price €989,00

Tax included. Shipping calculated at checkout

  • 4.2 m²
  • 4.5 m²
  • 4.7 m²
  • 5.0 m²
  • 5.4 m²
  • 5.8 m²
  • 6.2 m²
Available

60-day return policy

Free return shipping

After-sales service

We present the Duotone Duke sail.

OUR MOST SUCCESSFUL 5-BATTEN SAIL OF ALL TIME IS BACK! COMBINED WITH THE LIGHT DONE RIGHT CONSTRUCTION AND ALL THE OTHER DESIGN CONCEPTS DEVELOPED OVER THE LAST TEN YEARS, THE REBIRTH OF THE DUKE SETS A NEW STANDARD FOR WIND-RANGE-ORIENTED HANDLING SAILS.

Our most successful 5-batten sail of all time made a sensational comeback in 2023, and for 2025 we’ve given it a facelift!


The DUKE combines our LIGHT DONE RIGHT construction with all the other design concepts we’ve developed over the past ten years to set a new standard for wind-range-oriented handling sails.


The development of the DUKE was a 1.5-year project that always kept the end user at the center. As a starting point, we involved “real” end users who regularly use this type of sail, as well as our surf centers, to define a bucket list for the reincarnation of the DUKE. Here is the result and how it came about:


Maximum wind range, especially in shifting and/or very gusty conditions.

This is the most important factor and the biggest advantage when choosing a 5-batten sail. A simple rule of thumb is that more battens mean more control and a wider wind range. Normally, this has a negative effect on performance in the lower wind range, as more battens make it harder for the wind to fill the sail and make it less efficient to pump. That’s why we’ve adopted the BATTEN FREE CENTER concept from the SUPER_HERO. Instead of the usual even batten distribution, the DUKE has a larger gap between the foot batten and the batten above the Boom. This makes the boom area easier to inflate and increases stability at the top (due to the increased batten density in this area). The second disadvantage is that each batten increases the weight of the sail. This is why there has been a trend toward fewer battens in wave sails in recent years.


It feels super light in your hands, without falling apart after 1–2 seasons.

The lower weight of 4-batten sails was the main reason for the disappearance of 5-batten sails over the past decade. Fortunately, we’ve made some key design improvements over the last 10 years. The result of this development was the LIGHT DONE RIGHT CONSTRUCTION, introduced in 2022. By replacing the usual multi-layer reinforcements with a single layer of high-quality fabric and also introducing the ONE PIECE SLEEVE, the one-piece mast sleeve, we were able to reduce the total weight by 300 g. We are the only brand to have achieved these significant weight savings without reducing the thickness of the film and the XPly panels. This is the only way we can continue to guarantee our unmatched 5-year warranty. Another issue with reducing the film thickness is that the sail becomes spongy, as energy is lost due to increased stretch. This makes the sail feel heavier in your hands. Our sails are therefore not only on the They're lighter, but above all, they feel extremely light when you're out on the water. Because that's what really matters! Early


Planing performance even without excessive pumping

To achieve maximum glide performance, the DUKE features a high pressure point distribution combined with a deep profile that gets the board planing early.


Super neutral during maneuvers

To make tricks and turns as easy as possible, the sail should feel completely neutral in your hands during maneuvers. That’s why the DUKE is equipped with a pressure point positioned further forward. The forward pull cuts the power and shifts completely to neutral as soon as you open the sail or shift. This leads to a much higher success rate.


Good lift and control when jumping

The higher pressure point position also increases your airtime, as it generates lift, while the more forward-oriented pressure point helps you maintain control at all times.


Maximum range of use

One of the DUKE’s biggest advantages is its versatility. In bump-and-jump conditions, the Duke delivers pure excitement on your freewave board or, in a smaller size, for shredding on your freeride board. Thanks to its forward and high pressure point, it’s also well-suited for classic and even New School freestyle tricks. Last but not least, it’s a great sail for moderate wave and/or jump conditions, especially in gusty or challenging wind conditions. The new DUKE is thus a true all-around high-performance sail that challenges any handling-oriented sail.


Quick to rig

With all the features, markings, and tips we’ve developed over the past 40 years, it’s safe to say that no other sail can be rigged faster and more precisely than a DUOTONE sail. Even if you’re not a pro who sets up and trims your sail every day, you’ll still achieve the same perfect trim. Because only with the right trim can you fully harness the sail’s performance.


Similar feel to the larger freeride/performance sails

Another important factor is that all the sails in your quiver should have a similar feel or ride characteristics. This applies even to pros, because even they usually need a whole day to

get used

to a sail

that feels completely different. The main reason why sails feel different is the position of the pressure point in the sail. Fortunately, the DUKE also has a pressure point very similar to that of most modern freeride sails.


So you see, we’ve put all our know-how and experience into developing the most sophisticated high-performance Jump N’ Ride sail ever.

Key Features

DRAFT FORWARD
Forward pressure point for maximum neutrality during maneuvers >> leads to a much higher success rate
BATTEN FREE CENTER
Larger gap between the foot batten and the batten above the boom >> better loading (= planing power) in the fork area and improved stability in the upper sail area
LIGHT DONE RIGHT CONSTRUCTION
A significant weight reduction of 200 to 300 g without reducing film thickness, while maintaining the familiar durability and longevity!
VTS TAIL outhaul specs
Each sail features individually defined visual indicators for the correct clew tension (requires VTS TAIL Boom).
iROCKET 2.0
Individual batten tensions calibrated at the factory using torque
AVAILABLE IN HD
Also available as a mono-film-free HD version

SPECS

Size Luff Boom Extension Mast Weight
4.2 m² 380 cm 154 10/0 cm 370/400 RDM 3.0 kg
4.5 m² 390 cm 158 20/0 cm 370/400 RDM 3.1 kg
4.7 m² 404 cm 164 4 cm 400 RDM 3.2 kg
5.0 m² 412 cm 166 12 cm 400 RDM 3.3 kg
5.4 m² 434 cm 170 4 cm 430 RDM 3.4 kg
5.8 m² 440 cm 178 10 cm 430 RDM 3.5 kg
6.2 m² 452 cm 182 22 cm 430 RDM/SDM 3.6 kg
6.7 m² 466 cm 190 36 cm 430 SDM/RDM 3.7 kg
Duotone Duke SLS Segel 2026 freewave freeride windsurfing sail
Duotone Duke SLS Sail
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