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2026 Duotone Duke SLS Windsurf Sail

SKU

DT-14250-1205

From £799.00

The Duke is here to stay. Reintroduced back into the range it soon became Duotones most popular crossover sail. Its 5 batten nature give it a huge range and make it a great option for light wind wave sailing or high wind freeride/bump and jump.

Need some advice on this product? Speak to our expert Callum

Call us today on 01924 444 888

Email us on [email protected]

Description

With SLS construction Duotone has taken the Duke concept to the extreme! But instead of just swapping the materials, their team 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. Duotone 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 Duotone 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 Duotone have incorporated the BATTEN FREE CENTER concept that is already used 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 Duotone 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.

Key Features

CHAMELEON CHARACTER - The first sail morphing the advantages of a Freewave sail with a truly capable down the line wave sail

SLS >> STRONG-LIGHT-SUPERIOR - 400-500g lighter than the Original DUKE

BATTEN FREE CENTER - Larger gap between the foot batten and the batten above the boom >> better inflation (= planing power) in the boom area and improved stability in the upper sail area

VTS TAIL outhaul specs - Each sail carries individually defined visual indications for the correct outhaul extension (requires VTS TAIL boom).

iROCKET 2.0 - Factory calibrated individual batten tensions using a torque wrench

SUPER-LIGHT BUMPER incl. VTS slot - The lightest protector on the market. The integrated vinyl viewing window allows to spot the lower edge of the mast. Once the perfect trim has been found, the optional Velcro patch can be used to “save” this position – saving time and ensuring maximum performance.

Specifications

Size	Boom	Luff	Ideal Mast	Head Fitting	Battens	Weight
4.2	154	374	370	Fix	5	2.50kg
4.5	158	388	370	Fix	5	2.60kg
4.7	162	404	400	Fix	5	2.70kg
5.0	166	418	400	Fix	5	2.80kg
5.4	170	432	400	Fix	5	2.90kg
5.8	178	440	430	Fix	5	3.05kg
6.2	182	452	430	Fix	5	3.20kg

Shipping & Delivery

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Your Delivery

The range of products we offer means there is nothing standard about our deliveries. We use a range of couriers, including DHL, UPS and Royal Mail. For in stock items we aim for delivery in 1-3 days.

On receipt of an order, the relevant specialist staff member will contact you to confirm the stock position and shipping time. This gives you a direct contact for any requests and advice that might be helpful.

When courier services are used, you can expect tracking information and estimated arrival times to be communicated via email. However, always feel free to contact our staff at any point should you require assistance.

Need it quicker? Please get in touch prior to placing an order. We will always help where possible

Click & Collect

We’d love to see you in store! There is no additional charge for collecting in person, and the delivery cost will be shown as free during the checkout process. By selecting collection in person you are agreeing to pick up your order from our address, shown below:

Robin Hood Watersports

152 Leeds Road

Heckmondwike

West Yorkshire

WF16 9BJ

United Kingdom

You will be contacted by one of our staff when the order is ready to collect. Please do not visit the shop prior to receiving this communication.

Receiving your order

When you receive your item(s), please check to see if there is any damage. Once the drivers manifest has been signed it voids any insurance claim. If you are unsure, please sign as "damaged", which will allow you/us to make a claim later on if required.

If you suspect that your goods are damaged please take the time to check the items with the driver present or refuse the package and ask the courier to return to sender.

If you have any further questions regarding delivery please contact us.

Returns

Sometimes things don’t go to plan and you might feel the need to arrange a return. If you receive an order and find you have changed your mind, or the item just isn’t right for you, don’t worry. Goods can be returned for a refund within 30 days from the date of purchase (subject to our product exclusions). The process for both in store and mail order purchases can be seen below:

Postal Returns Procedure

If posting your return please email [email protected] for approval, as well as any advice required prior to sending. You would then simply ship the unwanted goods to our 152 Leeds Road address, including a copy of your original receipt and information on the required course of action.

Purchases from store

If you bought goods from our Heckmondwike based store you may, at our discretion, be able to return items within 30 days for a full refund, as long as they have not been used and still have the original labels attached. Please bring the items back to the shop, together with your receipt. Any refund can only be made using the same method as the original transaction.

Goods must be returned in an unused, re-saleable condition, with their original packaging, and all labels still attached. They should also be securely packaged to ensure the contents are protected during transit. Our Returns Team will review all items to ensure they meet the criteria outlined in this policy. If an item is returned outside of our Returns Policy, we may be unable to process a full refund. We will contact you in such circumstances.

Product Exclusions

There are some exclusions to our Returns Policy, as detailed below:

Personalised or customised items, such as custom canoes, made to measure drysuits etc.
Gift vouchers cannot be returned
Products that have been opened or unsealed cannot be returned
Products returned in an unsatisfactory condition cannot be returned
Products which have been damaged in return transit due to insufficient packaging cannot be returned

This Return Policy does not affect your statutory rights.

Finance

We hope that your next purchase from our store will be a long term one, so why not make use of our 0% APR finance offer. The scheme is run through V12 and our experience, as well as that of our customers, has been excellent.

The 0% APR finance option allows you to spread the cost of your purchase over 6 or 10 months. Given the bespoke nature of each application we prefer to discuss this with you, rather than automating the process online. As such, once your basket is finalised and you are ready to apply please get in touch using [email protected], or by phone on 01924 444888.

We will confirm the availability and price of your order, then emailing a link to your custom application forms. Once completed, V12 notify our staff and you will then be contacted to settle the deposit and arrange a convenient delivery date.

Please refer to the representative example below.

Cash Price	£400
Deposit Amount	£40
Loan Term	10 months
Monthly repayments	£36
Representative APR%	0% APR
Total amount payable	£400
Rate of Interest (per annum)	0% APR

Who can apply for finance?

You must:

• Spend over £300

• Make a deposit of at least 10%

• Be at least 18 years of age

• Have been a UK resident for 3 years or more

• Be able to make repayments by Direct Debit

• Be in regular employment* (minimum of 16 hours per week) including self-employment, or in a permanent residence with your partner who is in regular employment

*If you are retired and receive a pension or registered disabled and unable to work, V12 Retail Finance may ask for proof of sufficient income.

Credit is subject to status. Terms and conditions apply.