The EXTRA-LARGE is deigned for bigger, powerful surfers that need a larger fin than the LARGE. The EXTRA-LARGE is extra-large-weight large fin with a medium flex pattern balanced with an upright shape that shortens the turning radius (helping pivot boards with longer rails). The EXTRA-LARGE large has a lot of fin depth which provides control, a wide fin base for drive and a medium tip for hold through power turns. The EXTRA-LARGE large was specifically designed by Shapers to fill a a hole in the market and give larger surfers what they needed, extra drive, hold, control and pivot! Also an option for large surfers riding short, wide boards which require more drive and hold than their typical shortboards.