Wave SUP Cosmic

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Product overview
DUOTONE COSMIC SLS — one SUP wave hardboard intended to cover a wide range of wave conditions without swapping boards. Built for riders who want a single, configurable board to ride powerful overhead surf as well as playful beachbreaks.

Shape & bottom design
Round‑point nose for stable, clean wave entry at paddle speed. Pulled‑in moon tail for tight, responsive behaviour where it matters. The bottom transitions from a mono‑concave at the front (acceleration and drive) to a double‑concave through the mid‑section (stability and balance), finishing with an opening V at the tail to release water and free the tail for quick pivots.

4+1 fin box system — versatility
Four multi‑fin boxes plus a central US box provide four primary configurations in one board:

• Thruster (shipped) — balanced all‑round performance from waist‑high to overhead; precise and controlled.
• Quad — maximum lateral grip for powerful, critical surf.
• Twin — loose, skatey feel for smaller or softer waves; long arcs and flowing lines.
• Twin + trailer — twin with a small centre fin for added grip and directional control in between conditions.

FULL CUSTOM SLS construction
Constructed with Biax‑Composite‑PVC sandwich and individually CNC‑milled EPS cores. Each size receives an optimised laminate layup, producing a board that is lighter and stiffer compared with standard semi‑custom production.

Who is the COSMIC SLS for?
Designed for newcomers through advanced SUP wave riders who want an all‑wave hardboard capable of replacing multiple boards in a quiver.

Key features

• AI_BOARD_3D: proprietary 3D CAD for SYNCED CURVES and precise shape control.
• All‑wave performance: accessible for newcomers, suitable for advanced riders.
• 4+1 box system: configurable as Thruster / Quad / Twin / Twin + Trailer.
• FULL CUSTOM SLS technology: CNC‑milled EPS cores and size‑specific layups.
• +6 warranty: register within 60 days for extended coverage.
• Flat spot deck shape: flat centre deck for a stable stance and improved balance.

Performance

• Surf / Wave — manoeuvrable
• Allround / Entry — fun / easy
• Glide / Explore — glide / explore
• Race — fast / competition
• Budget friendly — affordable

Sizes and specs
BOARD | VOLUME (L) | LENGTH (IN / CM) | WIDTH (IN / CM) | TECHNOLOGY | WEIGHT (KG) (+/-5%) | FITTINGS | REC. USER WEIGHT | MASTFOOT INSERT
COSMIC 8'7" | 108 | 8'7" / 243.8 | 30" / 76.2 | FULL CUSTOM SLS | 6.80 | Fin Set Thruster AS (Multi|US) 5"+5" | Up to 120 kg | No
COSMIC 8'4" | 124 | 8'4" / 254.0 | 31" / 78.7 | FULL CUSTOM SLS | 7.00 | Fin Set Thruster AS (Multi|US) 5"+5" | (not specified) | No
COSMIC 8'8" | 140 | 8'8" / 264.2 | 32" / 81.3 | FULL CUSTOM SLS | 7.50 | Fin Set Thruster AS (Multi|US) 5"+5" | (not specified) | No
COSMIC 9'2" | 157 | 9'2" / 279.4 | 33" / 83.8 | FULL CUSTOM SLS | 8.30 | Fin Set Thruster AS (Multi|US) 5"+5" | (not specified) | No

Technical specifications

• Brand: DUOTONE
• Model: COSMIC SLS
• Construction: FULL CUSTOM SLS — CNC‑milled EPS core, Biax‑Composite‑PVC sandwich
• Fin system: 4+1 box system (4 multi boxes + central US box); Thruster shipped by default
• Deck: flat spot deck centre
• Tail: moon tail
• Bottom: mono‑concave front → double‑concave mid → opening V at tail
• Pads: 4 mm EVA Duo Structure with diamond centre pattern and rear longitudinal groove
• Leash: dual leash plug
• Color notes for repair: Top Pantone 3125 C; Bottom Pantone 389 C