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The Duotone Cosmic SLS is the all-wave SUP hardboard built to handle everything from powerful overhead surf to playful beachbreak — without swapping boards. With a 4+1 fin box system that lets you switch between Thruster, Quad, Twin, and Twin + Trailer setups, plus Full Custom SLS construction with individually CNC-milled EPS cores, the Cosmic SLS is light, strong, and built for intermediate to advanced SUP surfers serious about wave performance. Available in 8'0", 8'4", 8'8" and 9'2". Order now from Worthing Watersports, the UK's Duotone specialist store.