Channel Islands CI Mid Twin 7'3 Surfboard - Futures7'3" x 21 1 2" x 2 15 16" 50. 60L Channel Islands original CI Mid debuted with the ever reliable 2 plus 1 fin set up (big center fin, small sidebites). While it can also be enjoyed as a single fin, the side fin placement is too far forward to work properly as a twin. So, when updating their popular CI Mid to accommodate two fins, they once again worked with the Mids co designer Devon Howard. After riding multiple R&D revisions with various fin