
$65.00
Shipping calculated at checkout
As low as monthly payments with Klarna. Learn more
Shipping calculated at checkout from Charleston, SC
Only one available
Recently Listed
Shipping (price determined in checkout)
Only one available — grab it before it's gone
Eligible checkout is covered by our Purchase Protection.
The Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard. The 4-A has been True Ames' bread and butter for over 40 years now, and it is still the most popular single fin design there is due to it's all-around and well-balanced performance.
Charleston, SC

$65.00
Shipping calculated at checkout
As low as monthly payments with Klarna. Learn more
Shipping calculated at checkout from Charleston, SC
Only one available
Recently Listed
Shipping (price determined in checkout)
Only one available — grab it before it's gone
Eligible checkout is covered by our Purchase Protection.
The Greenough 4-A Single Fin is the most iconic, functional and versatile single fin available, because it works extremely well on just about every type of surfboard. The 4-A has been True Ames' bread and butter for over 40 years now, and it is still the most popular single fin design there is due to it's all-around and well-balanced performance.
Charleston, SC
Purchase Protection on eligible checkout
OutSurfing
Charleston, SC
Joined Reswell: 2026
Reswell protection
Shop knowing eligible purchases include Purchase Protection—clear coverage rules, a dispute path if the item isn't as described, and our team when you need a hand.
Learn morePurchase Protection on eligible checkout
OutSurfing
Charleston, SC
Joined Reswell: 2026
Reswell protection
Shop knowing eligible purchases include Purchase Protection—clear coverage rules, a dispute path if the item isn't as described, and our team when you need a hand.
Learn more