Captain Fin has just released these amazing flex fin templates this year from surfers like Alex Knost, Alex Kopps, and Tyler Warren. This is the Alex Knost Sunshine Flex Fin in a whopping 11" template. Flex Fins work great in everything from short little stubbies to mid-lengths to big ol' logs and nosriders. Flex fins create little to no drag resulting in maximum trim. The more raked back the fin is the wider the arc of your turn will be and the more upright the flex fin template is, the tighter your turn will be.