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Duotone Downwinder SLS Foil Board

SKU: 6753
  • From $1,829.86
  • (Delivery from $122.05 )
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Introducing the all new Duotone Downwinder SLS - a quantum leap in efficiency for downwind foiling and light wind wingsurfing.

This is a complete transformation of the outgoing Fanatic Downwinder series with the arrival of the new Downwinder SLS by Duotone. Shaped by the Hawaiian young gun minds of the Spencer brothers, Finn and Jeffrey, in collaboration with the team at Duotone, the Downwinder is an exhilarating foil board that delivers high performance and precision.

The Downwinder SLS boasts a stepped range of sleek, fast, and streamlined designs across number of key sizes and volumes. These four distinct shapes ensure there is a board for your riding style and expertise as well as foiling goals. From the nimble 6’4" × 19” and 6’10” × 20" to the versatile 7’2” × 21” and the stable 7’8” × 22.5”, the Duotone Downwinder SLS caters to riders of all levels. While volumes span from 85 to 135 litres, enabling you to further refine your foil board selection.

Engineered for impeccable take-off speed, the Duotone Downwinder SLS features a low rocker, elongated outline, and clean bottom contours. This enables you to accelerate effortlessly, while the slender pin tails features distinct rail bevels on larger models, allowing you to glide smoothly over the water, prompting early flight with minimal effort. The refined nose area, graced with rounded rails, enhances stability and minimises unexpected manoeuvres keeping everything on track. This all promotes lots of confidence underfoot rather than battling your board as you glide upwards.

Constructed in bespoke lightweight full carbon lay-up, the Downwinder SLS is uncompromising in its approach. While exceptionally light weight, the compromise in this pursuit of weight reduction does mean the Downwinder needs to be handled with care around hard objects such as stones and rockers.

Available in a range of sizes to suit your individual preference and prowess:







85 l

95 l

115 l

135 l


19" / 48 cm

20" / 50.8 cm

21" / 53 cm

22.5" / 57 cm


6'4" / 193 cm

6'10" / 208 cm

7'2" / 218 cm

7'8" / 233 cm






Rec. User Weight

< 85 kg

< 95 kg

> 100 kg

> 110 kg

Footstrap Options






Key features of the Duotone Downwinder SLS are:
•    Low rocker, streamlined width, and elongated outline for peerless glide performance.
•    Sleek pin tails accentuated with prominent rail bevels (7’2” & 7’8”) for optimal pumping efficiency.
•    Nose section adorned with forgiving rounded rails for a neutral steering experience.
•    Flat deck designed for comfortable foot positioning and effortless stance adjustments.
•    Single concave to flat bottom profile ensuring swift and efficient planing
•    Biax Carbon Custom Sandwich technology complemented by minimalistic graphics for optimal weight efficiency.

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For full details about our shipping options, rates and the countries we deliver to please visit our Delivery page.

As for returns; we will happily refund an item purchased from The SUP Company if returned to us within 30 days; excluding The SUP Company gift vouchers and customised products, except when faulty. Returned goods must be unused and supplied in their original packaging, unless the goods are faulty.

More information on The SUP Company return policy

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