Shop Australian Orders up until 2pm AEST December 19th to receive before Christmas

Free Express Shipping on All Australian Orders over $50 & International orders over $100.00





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With a nod to the great Mark Richards, the Alkali Classic Twin is as fast and loose as you like. With a larger area than most upright twins, drive is easily generated when needed. Stiff base and a fine tip combine with an outside foil for the kind of responsiveness that only true fibreglass fins can provide.

 Highest Quality 6 oz. fiberglass cloth and resin. 100% Australian Foils.

  • BASE: 132mm / 5.2″
  • DEPTH: 150mm / 5.9″
  • FOIL: Side foil/ Flat inside
  • CANT: 7 degrees
Shop Online up until 2pm AEST December 19th to receive in time for Christmas, Australian Orders Only.


Shipping: Shop now and receive free express shipping on all Australian orders over $50 & International orders over AUS $100. For international shipping rates for orders under AUS $100, please refer to our Shipping & Tax calculator at cart. All orders are dispatched within 24 hours on business days. A delivery time of 1-3 business days is expected for Australian orders & 4-10 business days for international orders. Tracking details will be automatically provided via email when your items are dispatched. For more details on our shipping policy please click here.


Returns: All online orders can be returned within 60 days for an online store credit however please be aware we do not refund. We only offer refunds for having received defective or faulty products. If you wish to return your item/s or if in the event you are to receive an incorrect or defective product please contact us immediately at For more details on our returns policy please click here.

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