K4 Fins
K4 SUP Wave Rear Flex Fin - US
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Free UK delivery — this order qualifies
Free on orders over £30. Kayaks are sent fully insured.
Free click & collect in Cardiff
Pick it up from our shop at Cardiff International White Water in Cardiff Bay or from our warehouse in Llanishen, Cardiff.
30-day returns
Changed your mind? Send it back within 30 days. Returns policy
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Call our Cardiff team on +44 (0) 29 22 362 362 or email sales@getonthewater.co.uk

Description
K4 SUP Wave Rear Flex Fin - US
The original K4 SUP Wave Rear Flex fin for performance wave riding and the first choice for pro team riders. Great flex for amazing grip and looseness on the wave. Raked template for control. A progressive foil for different flows between tip and base. Will loosen up a ‘stiff’ board.
The rear fins are available in 16cm (6.30"), 17cm (6.70"), 18cm (7.08") and 20cm (7.87").
Sold as a single fin.
US Finbox Design
Dynamic Flex
Dynamic Flex is the rippers choice. It's K4's original flex fin material. Its ability to flex and spring back to its original shape means crazy grip and extreme angles of attack and epic round house turns. You'll also find it easier to crank back up hard at the critical section, then gouge or project off the lip. The K4 original yellow fins, Dynamic Flex for ripping!
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Free Shipping
On all orders over £30 in the UK
30 days return policy
Details in our returns policy