Duotone Cosmic SLS 2027

43260-1102

COSMIC SLS — Born to Ride Everything. One board — Every wave. Built for riders who want to charge powerful overhead surf one day and shred playful beachbreak the next — without swapping boards.
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This is the SUP wave hardboard that does it all, and makes you better.

Shape & Bottom Design

The round-point nose delivers stability and clean wave entry at paddle speed, while the pulled-in moon tail keeps things tight and responsive when it counts. The bottom shape drives the performance: a mono-concave up front generates effortless speed and keeps the board alive through weaker sections, transitioning into a double-concave through the mid-section for maximum stability and balance. Toward the tail, an opening V releases water cleanly — freeing the tail for snappy pivots and that loose, fluid feeling through the end of every turn.

Accelerate. Drive. Release. Repeat.

4+1 Fin Box System — Unmatched Versatility

Four multi-fin boxes plus a central US box make the COSMIC SLS genuinely four different boards in one.

Thruster (as delivered) — Balanced all-around performance from waist-high to well overhead. The universal setup: precise, controlled, and high-performing across all conditions.

Quad — Maximum grip. Four fins deliver maximum grip and lateral hold for critical, powerful surf where traction is everything.

Twin — Ultimate looseness. The skatey, flowing twin-fin feel for smaller, softer surf. Draw long arcs or snap hard pivots — the board breathes and surfs with a freedom no other configuration can match.

Twin + Trailer — A small center fin adds just enough grip and direction to the twin setup for those in-between conditions where a little extra control makes all the difference.

FULL CUSTOM SLS Construction

Strong. Light. Superior.

Built with Biax-Composite-PVC Sandwich technology, every EPS foam core is individually CNC-milled — not pressed into a mould. The result is a board that is lighter and stiffer than anything made using standard semi-custom production, with an individual laminate layup optimised for each size. Light where it matters. Strong where it counts.

Who is the COSMIC SLS for?

The COSMIC SLS is built for newcomer to intermediate to advanced SUP surfers who are serious about wave performance. If your quiver currently contains multiple boards for different conditions — or if you’ve been searching for one board that can genuinely replace them — this is it.

DUOTONE COSMIC SLS – YOUR ALL-WAVE PERFORMANCE SUP HARDBOARD

AI_BOARD_3D
We use our own exclusive 3D CAD software. Apart from being much more accurate and faster, complex 3D design tasks such as our ground-breaking SYNCED CURVES CONCEPT would otherwise have been simply impossible to realize.
All-Wave Performance
Accessible for wave newcomers, still exciting for advanced wave riders.
4+1 Box System
Unmatched versatility since you can setup the board as a thruster, quad, twin or twin + trailer.
FULL CUSTOM SLS TECHNOLOGY
The FULL CUSTOM SLS TECHNOLOGY is build like a real custom made board.
+6 WARRANTY
Register your board online within 60 days of purchase for a 6 months extended coverage.
FLAT SPOT DECK SHAPE
The center of the deck is completely flat. This feels like standing on a jetty providing a stable base for better balance and maximum control.