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Seattle, WA 98109

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K-3 Composite Tri Fin Set


  • Product Details
  • Shipping Info
  • Return Policy


Kelly says, "The FCS K3 Fins fins are perfect for down the line walls and long turns. I actually started using the FCS K3 fins 3 years ago when I needed a better fin for the long walled waves at Rincon. Now I've been on the FCS K3 Fins for over three years. They have been my magic set. I originally designed the K2.1 with beach breaks and barrels in mind, and I still use them in these sorts of conditions. With the FCS K3 and K2.1 Fins you should be set for pretty much any sort of waves you find." - Kelly Slater 

Kelly has really put the FCS K3 Fins to the test over the past 3 years he s had a lot of CT wins on them, J-bay twice, Bells this year Trestles last year just to name a few . FCS is really excited to offer the K3 Fins on his behalf. They complete the fin quiver that he draws from on tour. Said FCS's Tyler Callaway." 
The FCS K3 Fins have a  template that is a bit deeper and features slightly less base area than the K2.1 with a smaller more raked tip. This will allow the K3 Fins to provides drive and the ability to draw out longer arcing turns. With a rigid base combined with a tapered flexible tip results in a progressive flex pattern, for quick rail transitions and forgiving performance in sticky situation. All of this is combined with the responsive materials of Glass Flex or Performance Glass produces the K3 Fins; Fins that turn incredibly tight through snaps due to the added flex in the tip. The FCS Flex fixture was used to measure the flex pattern of Kelly's magic set. So that the same flex pattern could engineered into the FCS K3 Glass Flex version. 

The refined foil on the FCS K3 Fins allow efficient water flow, minimizing drag and cavitation. The FCS K3 Fins are an aesthetically striking fin, whether in (NEW)Performance Core, Performance Glass or Glass Flex the FCS K3 Fins feature 8 concentric circles to represent Kelly's 8 world titles.
FCS K3 Fins: Side Fin Size:

Side Base: 4.45 in. 113 mm

Side Depth: 4.61 in. 117 mm

Side Area: 15.11 in.² 9750 mm²
Sweep: 34.3°
FCS K3 Fins: Center Fin Size:
Center Base: 4.28 in. 109 mm
Center Depth: 4.41 in. 112 mm

Center Area: 14.22 in.² 9172 mm²

Sweep: 31.0°

General Policy

All orders are received between 9am and 5pm (PST), Monday through Friday. Orders shipped via standard ground and $5 shipping will be processed and shipped within 4 business days (excluding weekends and holidays). Orders with expedited shipping (Next Day Air, 2nd Day Air, Express Mail) will be processed and shipped within 2 business days (excluding weekends and holidays).

Extimated Delivery

Delivery via Standard UPS Ground takes 5 to 7 business days. USPS Priority Mail should take 2-3 business days, and Express Mail should take 1-2 days to ship.  Please see the chart below in the "Shipping Rates" section for more information.

Please keep in mind that estimated delivery times are only estimates and may be adversely affected by weather conditions and factors beyond our control. Your package may also be delayed due to mistakes during the checkout process or other irregularities. To avoid delays, please be sure to carefully complete and confirm the accuracy of the information you enter during checkout and before submitting your order.

$5 Shipping

$5 shipping is offered via UPS Ground on all domestic orders over $99.  Shipping takes 5 to 7 business days and will include a tracking number, so rest assured that you will get your stuff, and you can track it along the way, all for just $5!

Shipping to P.O. Boxes

Snowboard Connection ships to all P.O. boxes via either USPS Priority Mail or Express Mail ONLY. UPS cannot deliver to P.O. boxes.

Shipping to Alaska or Hawaii

Shipping to Alaska or Hawaii will be shipped with USPS Priority Mail or Express Mail. Packages cannot be delivered over bodies of water by UPS Ground.

Standard Shipping Rates

Order Total Standard UPS Ground 5-7 Business Days Priority 2-3 Business Days Express 1-2 Business Day
$0 - $25 $7.00 $15.00 $28.00
$25 - $99 $10.00 $20.00 $35.00
$99+ $5.00 $28.00 $42.00


Hopefully you wil find the answers to any questions you have about returns in the section below. If you would like to talk to us about a return, please give us a call at 877-761-2661. Alternatively, you can email your questions to returns@snocon.com.

If for any reason you are not satisfied with your purchase, please return it to us within 30 days, and we will gladly replace it or issue you a full refund, no questions asked!

In the event that you need to make a return after the 30 Day period has expired, we may be willing to make an exception. We're reasonable people, and we want you to be happy.

Any returns authorized after the 30 Day period will be issued a store credit only.  Please contact us at 866-761-2661 (Monday - Friday, 10am - 6pm) or email us at returns@snocon.com and we can work with you on your return.

We accept returns of unused items in their original packaging with all tags and labels included, in like-new condition. If you have an issue with the condition of an item upon arrival at your home, please contact us and we will set up a return and replacement for that item.


We will issue your credit to the original credit card used for the purchase. We will credit you the total of your original item(s) including tax, as applicable. If the return is a result of our error, we will refund the original shipping fee and also offer you a credit for any return shipping costs (non-expedited).  If you have any questions, please contact us at returns@snocon.com.


Our exchange policy is basically the same as our return policy. If you would like to exchange an item, please contact us at 877-761-2661. We will verify that the item you would like to exchange your purchase for is in stock, and then we will set up the RA for you.  Once we received the returned item, we will issue your credit. At any point in the process, you can re-order the correct item and we will ship it out ASAP.


We accept returns on sale items within 30 days.  Original tags and receipt must be present.  We do not accept returns on sale items after 30 days from the purchase date.

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