Duotone COSMIC (4) D/LAB Board
The COSMIC (4) D/LAB is Duotone's World Cup wave board for advanced to experienced riders who chase ground swells and windy European waves from Maui to Cape Town, and from Brittany to Mauritius. Built as a quad-fin waveboard using FULL CUSTOM Production technology, it is made to order—custom Fins included—in sizes ranging from 53 to 106 liters.
FULL CUSTOM Production is the foundation. Every prototype is manufactured in the factory under identical conditions. What the team rides is exactly what you get: consistent, reproducible, with full control over weight and layup at every stage.
The SYNCED CURVES CONCEPT is the architectural core. Using Duotone’s AI_BOARD_3D software, rocker, outline, and rail curvature are synchronized across three zones. Around the mast track, the reinforced curves pull you into the bottom turn. Behind the rear loop, the curves intensify once more for an explosive top turn. The COCMIC (4) D/LAB transitions seamlessly between bottom and top turns.
The 3-STAGE ROCKER divides this waveboard into three zones. A flat center section provides a stable platform when transitioning between bottom and top turns. The nose rocker engages the rail in the water during frontside turns. The KICKSTARTER TAIL delivers a progressive tail kick for precise water release, acceleration through the back foot, and tight top turns. The STABLE YET RADICAL CONCEPT adds 1–2 cm in width and more outline curve. As a result, the COSMIC (4) D/LAB glides through whitewater like a board that’s 5 liters larger and carves like one that’s 5 liters smaller.
Every detail has been refined for 2027. New asymmetrical side fins deliver even more drive and grip. A revised layup reduces the board’s weight by another 100 to 200 g, depending on the board’s length. More nose rocker helps you navigate even rough whitewater. The redesigned tail outline responds faster during turns. The revised tuck line in the mid-fore section improves acceleration and control during turns.
Quad setup: ideal for side and side-off conditions and strong currents. Not for onshore conditions.
Target audience: advanced to experienced wave riders
Ideal for: from ground swell to windy Euro waves, side and side-off conditions
Key Features:
> New asymmetrical side fins for even more drive and grip
> Redesigned layup reduces weight by 100–200 g, depending on board size
> More nose rocker for clean crossings even through rough whitewater
> Redesigned tail outline for sharper turns and more grip
> Redesigned tuck line in the mid-front section for improved acceleration and control
QUAD GRIP WITH TOP-TURN SNAP. MADE TO ORDER FROM 53 TO 106 LITERS, INCLUDING MATCHING CUSTOM FINS. NO TUNING LOTTERY—JUST YOUR BOARD FOR YOUR WAVES.
Specs
| Model | Volume | Width | Length | Technology | Weight (± 5%) | Features | Max. sail size | Recommended board bag |
| Cosmic (4) D/LAB 53 | 53 L | 50.5 cm | 213 cm | Full Custom D/LAB | 4.70 kg | Fin Set Quad ASYM (Slot|Slot) 7.5+13.0 | 3 × Premium 2.0 Footstraps | 4.5 m² | Windsurf Core Stubby 215 × 58 |
| Cosmic (4) D/LAB 61 | 61 L | 52 cm | 216.5 cm | Full Custom D/LAB | 5.10 kg | Fin Set Quad ASYM (Slot|Slot) 7.5+13.0 | 3 × Footstrap Premium 2.0 | 4.7 m² | Windsurf Core 230 × 58 |
| Cosmic (4) D/LAB 69 | 69 L | 54 cm | 219 cm | Full Custom D/LAB | 5.30 kg | Fin Set Quad ASYM (Slot|Slot) 7.5+13.0 | 3 × Premium 2.0 Footstraps | 5.0 m² | Windsurf Core 230 × 58 |
| Cosmic (4) D/LAB 76 | 76 L | 57 cm | 220 cm | Full Custom D/LAB | 5.45 kg | Fin Set Quad ASYM (Slot|Slot) 8.5+14.0 | 3 × Premium 2.0 Footstraps | 5.3 m² | Windsurf Core 230 × 58 |
| Cosmic (4) D/LAB 82 | 82 L | 58.5 cm | 221 cm | Full Custom D/LAB | 5.80 kg | Fin Set Quad ASYM (Slot|Slot) 8.5+14.0 | 3 × Premium 2.0 Footstraps | 5.7 m² | Windsurf Core 235 × 61 |
| Cosmic (4) D/LAB 88 | 88 L | 59.5 cm | 223 cm | Full Custom D/LAB | 5.90 kg | Fin Set Quad ASYM (Slot|Slot) 8.5+15.0 | 3 × Footstrap Premium 2.0 | 5.7 m² | Windsurf Core 235 × 61 |
| Cosmic (4) D/LAB 94 | 94 L | 60.5 cm | 225 cm | Full Custom D/LAB | 6.10 kg | Fin Set Quad ASYM (Slot|Slot) 8.5+15.0 | 3 × Premium 2.0 Footstraps | 6.2 m² | Windsurf Core 235 × 61 |
| Cosmic (4) D/LAB 106 | 106 L | 63 cm | 228 cm | Full Custom D/LAB | 6.25 kg | Fin Set Quad ASYM (Slot|Slot) 8.5+16.0 | 3 × Footstrap Premium 2.0 | 6.2 m² | Windsurf Core 240 × 66.5 |

















