The board measures 286 cm in length and 93 cm in width. Unlike formula boards, it is quite heavy at 15.5 kg, which is almost twice that of regular competition formula boards, but is very similar to the weight of raceboards such as the previous Olympic board, Mistral One Design Class. The Mistral board has a weight of 17 kg ready to sail, while the RS:X board weighs more than 19 kg.