My Account

Specialising in innovative & revolutionary performance wave, freestyle & speed fins. Our fins are unique to windsurfing. They're made using plastic composite - giving them extra flex, reflex & outstanding performance.

Email: bigyellow@k4fins.com
Phone: +44 7812 399723

K4 Fitness – Pro sailor training tips

30th January 2018
Blazing Fireballs!

15th December 2017
Fin speed testing update.

24th November 2017
Fin testing!

28th August 2017
Heads up!

11th October 2016

Some new sizes now available due to popular demand. Leon 'super stiff' in 18 and 20cm. https://t.co/WBX656HDRQ (or… https://t.co/SVctXgV91P
Sick cover for Leon!! https://t.co/b1SmXpetmC
It's official, Thomas is on the yellow fins! After a year of using the fins on the PWA world tour through his own… https://t.co/kttCM0W48N