This is an Aerotech Future 2.8 sail and aluminum mast. The sail is in great shape, no flaws supple x-ply. The mast is 310 aluminum, very light makes for featherweight rig. The mast fits a standard RDM extension, or you can use included US cup non-adjustable extension. If you need a US cup base (rubber UJ) for standard mast track add $40. If you need a boom, I have Chinook reduced diameter grip boom good condition add $50, boom shim needed and included. Luff and boom dimensions are in a photo. Sail and mast alone $100. I'm in Chicago, don't really want to ship this.