FCS Fins
Eisbach Riders FCS-compatible fins use the classic double-tab system — the most widely adopted fin standard in surfing — so they fit virtually any modern shortboard, fish, or river board without adapters or tools.
All fins are made from recycled materials in Germany, with shapes and flex profiles tuned for the specific demands of river surfing, wave pools, and ocean breaks. Available in thruster sets, twin-fin configurations, and the Rapid River set — a twin-plus-trailer combination sized for shorter river boards.