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Duotone Cosmic (4) SLS 2027
Duotone Cosmic (4) SLS 2027
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FOCUS GROUND SWELL >< WINDY EURO WAVES (NOT FOR ONSHORE)
The COSMIC (4) SLS is Duotone's SLS-tier wave board for advanced to expert riders in powerful ground-swell conditions. It is not designed for onshore waves; its focus is side/side-off and offshore ground swell at high-performance wave spots (Maui, Cape Town, Brittany, Cabo Verde, Ireland, Chile, Mauritius).
Construction: FULL CUSTOM SLS with S_GLASS+ reinforcement. The SLS build uses a lower carbon content than D/LAB; Innegra is replaced by S_GLASS+. The FULL CUSTOM production process delivers consistent weight and flex across every board leaving the factory.
Shape system: Built on the SYNCED CURVES CONCEPT, developed using the proprietary AI_BOARD_3D software. Rocker line, outline and rail curvature are synchronized throughout the board length so the three shape elements amplify rather than cancel each other.
3-STAGE ROCKER: flat mid-section in-between the straps for a stable stance; nose rocker activates right in front of the front straps for front-foot-initiated bottom turns; kickstarter tail-kick (progressive from the last 4–5cm) enables tight, snappy top turns. The COSMIC (4) SLS update adds a touch more nose rocker for improved white-water crossing.
Outline: narrower nose and tail than the GRIP model. Narrower nose delivers more control at speed in ground swell. Narrower tail improves control in higher waves.
Bottom shape: V double concave in the front transitions to a flat double concave underfoot, then mono concave toward the tail for high-speed rail-to-rail stability.
2027 changes:
> Refined tail outline: improved turn-ability and grip
> Refined tuck line (mid-front): quicker acceleration and improved control
> Added nose rocker: cleaner white-water crossings
Target rider: advanced to expert wave windsurfer
Best for: powerful ground swell, side and side-off wind angles, World Cup wave spots
Available sizes: 74, 76, 78, 82, 88, 94, 106 liters Package: includes fins (Slot Box)
STOP FIGHTING FOR GRIP. ON A WAVE THAT SCARES EVERYONE ELSE, THE COSMIC (4) SLS HOLDS ITS LINE — AND BEGS FOR MORE. YOUR BEST TURN IS WAITING.
Key Features
| Volume | Length | Width | Weight |
| 76l | 220cm | 57cm | 6.0kg |
| 82l | 222cm | 58.5cm | 6.1kg |
| 88l | 223cm | 59.5cm | 6.3kg |
| 94l | 224cm | 60.5cm | 6.5kg |

Let customers speak for us
from 130 reviews
I found this wet suit a good and comfortable fit. I was particularly impressed with the reinforced lower arms and legs which are perfect for wing toilers.
Should have got one of these ages ago to put over my leather seat, now, no longer having clothes stuck to me from sweating on the leather seat good price indeed, kept informed of delivery date, if you have all leather seats highly recommended to get some.
I actually took the Y30 wing as the y29 was out of stock.
It’s fantastic i would recommend
A perfect clean transaction with excellent communication from nice people..!
Really pleased with the Lazepump. Easy to use and is much quieter than my old 12V plug in one. Great, friendly service from Poole Harbour Watersports too!
Starboard surf 9'5
Ordered over the phone. Staff are great and friendly as you'd expect from a family run business with great knowledge of products. Board arrived within two days. Had a slight mix from their suppliers which was no fault of the shop, but the staff responded straight away and have gone above and beyond to resolve the issue quickly and fairly leaving us both happy. Quality product and service. I will definitely be using them again and would recommend this shop to others.
Fab flip flops, really comfortable, great service too! Really quick delivery.
Excellent!!!
Practical and comfortable - even with a large head. Forehead padding much improved from previous version. Like the extra ear protection this helmet gives. Once helmet is on I don’t notice it - even ducking through a wave.
Good team advise and quality product
Great friendly service and awesome product.
Said they would deliver within a week and did exactly this. A bit weird as the gear came from germany so all tracking info in german, but not a big deal (import duty were paid already btw).
Bought over the phone. Great value and service. Christian was lovely Delivered really quickly andgenuine products. What not to like!
Great price for a high end inflatable SUP
Because of my holidays I needed to delay shipping.
PHW easy to contact and speak to in person, very understanding and accommodating.
The courier service was personable and impeccable.
I live in Belgium and had forgotten to factor in the heavy customs costs, but the board was still good value even so .
Lovely and soft very bright colours and the biggest beach towel I have bought