FCS II CI Upright Tri Fins (MED / Performance Core / Black)

A collaboration with Channel Islands Surfboards, the CI Upright is designed for speed and tight turns. Performance Material Size Overview A collaboration with Channel Islands Surfboards, the CI Upright is designed for speed & tight turns. A template that comes to life in punchy hollow waves, but can also suit conditions where you need the start up speed to get going. Ideal Conditions Hollow steep waves, punchy beach breaks. Board Types Designed to fit the FCS II Fin System. Performance boards with deep concaves and moderate-to-extreme rocker. Fin Family Reactor: Find Speed. Speed, tight turns & snaps. Performance Core Performance Core (PC) fins are made using a multi-layered resin transfer molding process. The flex pattern in PC fins extends progressively from the base through to the tip, helping the surfer to maintain drive and hold through a turn. This versatile fin material is light, and can be used in a variety of different conditions. MEDIUM (65Kg - 80Kg / 145 - 175 Lbs) LARGE (75Kg - 90Kg / 165 - 200 Lbs) Fin Base (inches) Base (mm) Depth (inches) Depth (mm) Area (inches) Area (mm) Sweep Deg° Foil MED 4.39 111.4 4.59 116.4 15.04 9700 30.3° Flat LRG 4.50 114.2 4.70 119.3 15.79 10190 30.3° Flat View the FCS Fin Data page for Base/Depth/Area/Foil information.