Aquatic Division The Keel

This is the only choice to pair with a classic fishtail!
Exceptional stability and unparalleled speed.

A surefire setup for classic San Diego-style fish.

This keel-shaped twin fin is the perfect match for classic San Diego-style fish boards with a wide board and minimal rocker, making it the fastest fin setup. Its wider base and lower profile compared to high-performance twin fins with an upright design reduces water resistance when gliding the board, resulting in superior stability and speed. Made of fiberglass , it offers a strong drive feel, similar to glass-on fins .

Recommended boards

CHRISTENSON FISH, CHRISTENSON LONG PHISH 2.0, CI FISH, BDAD COBRA KAI… Best for classic San Diego-style fish. It also matches the mid-length twin hairstyle that has been trending in recent years.

SIZE SPEC

Height: 5.13" / Base: 6.4" / Foil: Flat
Fiberglass

An original case with a fin key is also included.

AQUATIC DIVISION FIN

BEACHED DAYS' surf gear line, AQUATIC DIVISION, offers a range of surf gear approved by professionals both domestically and internationally. This includes a new standard surfboard with a soft top and EPS core, a perfect reproduction of Chris Christenson's masterpiece, as well as fins and wetsuits developed through repeated testing in California by brand founder Mitch Abshere and others.
Finn Products

Derek Eisenkurch, who, along with Mitch Abshere, spearheaded Captain Fin's golden age, has created a new design.