Become a FIN+ Member

FIN+ is a membership program allowing you to rent fins
as much as you want, for as long as you want.
No contracts, no commitments.

Learn More

10” greenough 4a single fin solid red

$99.00 USD Sale Save

True Ames

There is a reason this is the most iconic, functional and versatile single fin available...it works on just about anything! The Greenough 4-A has been our bread and butter for close to 40 years now, and is still the most popular single fin design there is. A truly well-balanced fin...the full base coupled with the tapering, moderately flexible tip provides a solid amount of drive off the bottom, and an acute responsiveness through arcing turns. Designed for both speed generation and spending time surfing in the pocket, the 4-A is a fin that will hold when you need it to and release when the time is right.

Single Fin - Single Fin

Sallas X Keani

SALLAS X KEANI

From $80.00 USD

Flying Diamonds of California

3 colors available

CJ Cali Pivot

CJ CALI PIVOT

From $95.00 USD

Flying Diamonds of California

6 colors available

CJ Power Flex

CJ POWER FLEX

From $85.00 USD

Flying Diamonds of California

5 colors available

Sea Monnster Pivot

SEA MONNSTER PIVOT

From $90.00 USD

Flying Diamonds of California

4 colors available

Sallas X Kelis

SALLAS X KELIS

From $75.00 USD

Flying Diamonds of California

4 colors available

Sallas Spiral

SALLAS SPIRAL

From $80.00 USD

Flying Diamonds of California

6 colors available

NPJ Single Fin

NPJ SINGLE FIN

From $75.00 USD

Flying Diamonds of California

4 colors available

NPJ 2+1 Center Fin

NPJ 2+1 CENTER FIN

From $65.00 USD

Flying Diamonds of California

4 colors available

TJ Pro Flex Center

TJ PRO FLEX CENTER

From $75.00 USD

Flying Diamonds of California

3 colors available

TJ Power Drive

TJ POWER DRIVE

From $75.00 USD

Flying Diamonds of California

3 colors available

TJ Edge Sides

TJ EDGE SIDES

From $55.00 USD

Flying Diamonds of California

3 colors available

Skindog Twin Fins

SKINDOG TWIN FINS

$95.00 USD

Flying Diamonds of California

4 colors available

Sold Out
Sold Out

TJ Quads

TJ QUADS

From $60.00 USD

Flying Diamonds of California

Sold Out
Sold Out
Sold Out
Sold Out