Channel Islands Upright 5-Fin Futures Surfboard Fins - XL/GreyDesigned in conjunction with the Better Everyday the CI Upright five fin set is designed for surfers who want speed, control, and maneuverability. Upright side fins and raked trailers combine for the perfect amount of drive and release. The upright nature of the thruster template promotes tighter turns and therefore comes to life in punchy, hollow waves and when performing vertical turns, but it will also suit conditions where you need immediate start