Big Sky 'Mo' Single [SECOND]

Regular price $48.00 Sale

Featuring the unique colours of the Hawaiian Sunrise Shell.

Availability: In Stock Unavailable


This fin is considered by our hard-marking team as a "second."
The images here are only for reference, and each fin defect may differ slightly from the photos shown. 
Typical issues are purely minor cosmetic issues and will mostly go unnoticed once on the board.
The images shown are also the worst examples, so we predict that you'll be pleasantly surprised at how good the fins are when they arrive.
Unfortunately, we cannot offer returns or refunds on these fins, so please reconsider purchasing if you are a super picky shopper. 

Seconds fins are not authorised for re-sale through websites or stores. 

Defects on this fin may include: 

  • Small scratches
  • Air bubbles
  • Uneven lines due to the fiberglass panel layup
  • Resin colour bleeds or small drips
  • Uneven foil lines


Alkali is proud to be working once more with Andrew Kidman and Big Sky Limited with a collection of three fin templates that suit a variety of boards.
The Big Sky fins come from a healthy knowledge of design, passed along through craftsmen who understand how to merge the elements of fin and board design elements.
Peter 'Mo' Moschogianis has been building surfboards since 1965. He surfed right through the shortboard revolution, constantly experimenting with design. This single fin is the shape he settled on for his boards - originally foiled in the seventies by Mo.

This fin is best suited to classic single fin designs and ridden in waves up to six feet.
This is not a stagnant project - through testing, we will continue to adjust and progress the designs even further.
This collection is cut and hand-foiled from laminated fibreglass/resin panels like all our fins. This means that you can sand out any damage from rocks, reefs or speed bumps. We also encourage you to customise the fins to your liking; by foiling them down to a smaller size, thinning out the tip for more flex, or altering the outline. Don’t be afraid to experiment. Even minor adjustments can make a massive difference to the performance of the fin, and you’ll learn a heap about fin design along the way.


BASE: 140mm / 5.5 ”
DEPTH: 190mm / 7.5 ”