The WindSUP Compact Sail Package is the ultra compact model. It is light, easy to assemble and the easiest to transport or store. It uses a 4-piece mast and a 3-piece boom to minimize the storage size. They are available in 5.5m² and 6.5m² sizes.
(1) NEW! 4-piece RDM mast provides flex to the sail and makes for easy transport and storage
(2) Light Dacron sail for a smooth power delivery and a light feeling
(3) NEW! 3-piece Compact boom works as a normal boom but can be stored more easily
(4) Color-coded mast base extension and boom recommended markings make setting up the sail simple
– See more at: http://www.star-board-windsurfing.com/2015/products/boards/windsup-sails#overview