F4 Control Fiberglass Thruster Small Size:Small Harley Ingleby's small single fin

Harley Ingleby's small single fin adds more tail release to longer boards

Performance Core

The next level in speed generating fins is here with the all new Generation Series

Island Fin Design has become Hawaii’s premier fin supplier

F4 Control Fiberglass Thruster Small Size:Small Harley Ingleby's small single finThe F4 Control Series is a small Speed Control fin with a Ride Number of 1. 5. The solid fiberglass construction features a single layer of uni directional carbon fiber for weight reduction and response. It is the stiffest, most durable version of the popular F4 template and is ideal for stability in powerful surf with additional durability at reef breaks.