Full Dacron rigs with a vinyl window. made to last. The Dacron sail cloth material is long lasting and durable. combining a 2-piece epoxy mast and easymount boom. All sail sizes have a fixed color. helpful in schools. All sails have three full length battens. The whole rig includes adapter. ropeset and uphaul. packaged in a heavy duty tailored bag. for easy travel and storage. 5.0. 5.5 and 6.0 feature a full size SDM epoxy mast and vario booms. built to withstand the biggest surf.