Flow Without Limits — Fins Built for the Mid-Length Life Your mid-length deserves more than average fins. The FCS II Mid Side Byte set is built for surfers who chase smooth, connected lines — the kind of ride where every turn feels effortless and every section opens up. Features: Side byte template engineered for mid-length boards 3.6" side bytes derived from the iconic GL template (late '90s) PG material construction 2 + 1 Box set: adds response and control to complement the single fin Encourages smooth flow without restricting manoeuvrability Tighter turns performed higher on the wave Ideal conditions: open face, down-the-line waves — point and reef breaks Fits the FCS II Fin System Suitable for longboards, SUP, or as shortboard quad rears Fin Family — Carver: powerful, drawn-out turns with added hold Ready to complete your mid-length setup? → Explore our New Drop Surfboards collection and find the board these fins were made for.