The Capricorn comes equipped with an 8mm x 16.5m single-braid sheet with a center tail sewn in. I don't know the brand of line - it had a good hand but took the shape of the blocks after a few races. After it wore, I replaced it with 6mm FSE Robline. I have had Swiftcord sheets before and the Robline seems to be a shade more robust. It is not yet taking the shape of the blocks and is not showing wear after several regattas now. I like it.