The 511 Series! What's a 511 you ask…. a slalom Powerhouse. Our design focus was to develop a very powerful, yet easy handling sail. Forgiving in all its sizes 4.2 to 7.7, the 511 Series is all about rigging once and enjoying your session. Significant changes in wind and water conditions no longer matter. Designed with a muscle car power stroke foot, the 511 proves powerful in wind strengths a meter lighter than its size. It riots in and out of the rolling swell and amazingly its draft is still predictably locked to get you back to the beach first when drag racing your buddies. This is our best all around sail for those who don't worry about a slightly larger foot area.