4.0" CI Channel Islands Side Bites

4.0" Channel Islands Side Bites - FCS Compatible, Solid Fiberglass. These side bite fins deliver maximum performance when paired with a single fin on 2+1 surfboards. Channel Islands' design expertise combined with True Ames' manufacturing excellence ensures superior flow and responsive control. The slightly larger 4.0" dimension provides additional hold and drive for surfers seeking enhanced performance in their 2+1 setups.