Fraternal Twin Fin Set in Red



We enjoy going fast, flowing in and out of our turns, and pushing hard when we need to. The Fraternal Twin fin allows for all of that, without losing any top to bottom performance. 

This twin fin template is a hybrid between a modern keel, and a retro twin. It’s somewhat of a  larger size of twin fin overall, but not as tall as your usual twin. We wanted this fin to be very versatile. This can be used as a keel fin for smaller-lighter surfers in fishes, but also works fantastic as a twin fin for an average to larger surfer who isn’t afraid to lay your body weight into some deep solid bottom turns and big roundhouse cutbacks.


  • 5.25” tall x 5.75” length
  • Futures Compatible
  • Made in San Diego, CA
Product Details

• 5.25” tall x 5.75” length
• Futures Compatible
• Made in San Diego, CA


Free express shipping on all US orders over $185 (excluding surfboards).

Please allow 3-5 business days for your order to be processed.

Visit our shipping page for further information.

All surfboard shipping costs will be calculated after purchase. Please email in order to receive shipping quotes on all boards.

We also offer free pick-up from our retail store in San Diego.


We expect you’ll love your purchases. On the off chance you don’t, we’re pleased to offer returns for store credit or in-store exchanges.

Imperfects does not cover return shipping cost, and the cost of a return label will be deducted from your store credit at the time of processing.

Final Sale and International orders are not eligible for return or exchange. For further details please see our returns policy returns policy.