Save up to 50% - Join the revolution!

K4 3SW Power Box Fins


  • Great All-round Freestylewave Fin
  • Ideal For Severne Dyno Fin Replacement
  • Fast, Easy to Gybe
  • We Stock Powerbox Only

Product Description

The 3SW freestyle-wave fin. Developed with help from the Official Test Centre Weymouth.  A fin that will give you amazing speed and control, secure and loose carving on the fast flats or choppy waves. The material is K4’s ‘Super Stiff’, the ideal composite for freestyle-wave fins; great reflex, stiff enough for excellent acceleration and direct response, enough flex for speed, grip and control. The 3SW also works great in big wave boards.
Check some early feedback in our blog post, ‘Introducing the 3SW

More information about our Super Stiff material

Full specifications here:

Fin Specs

Sold as singles for £54.95 each.


There are no reviews yet.

Be the first to review “K4 3SW Power Box Fins”

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

If you are based outside of the UK, we do not currently have postage available to your country during checkout. Use the form below to directly request an accurate delivery cost to your location and we'll be in touch as soon as we have a confirmed cost.

  • This field is for validation purposes and should be left unchanged.