ACS technology (ACS= Aerated Cellular Structure), a BIC Sport exclusive, combines an ultra-durable polyethylene shell with a full polyurethane foam core. The stable shapes of the ACS SUP range provide all-round performance for both flatwater cruising and small wave surfing. ACS boards are ideally suited for first timers, rentals, resorts and camps or anyone looking for all-round performance that’s affordable and durable.