Orders placed by 12:00 PM on business days are handled the same day.
Free shipping in the EU.
Contact us directly.
performance kiteboarding fin
GO HIGHER | GO HARDER | GO FURTHER
🇦🇹 MADE & DESIGNED IN AUSTRIA 🇦🇹
Powerful Take-Offs.
Ultimate Control.
Increased Windrange.
Our patented PORTAL-FIN is designed for riders pushing their limits. Its unique hollow profile (BoxWing) optimizes water flow, delivering exceptional grip, stability, and upwind performance. Send it bigger, edge harder and land with full control – the PORTAL-Fin elevates every aspect of your ride like never before.
One set includes 4 Fins, 4 Topmounts, 4 Spacers and 8 Screws (F-ONE-Adapter optional).
Currently shipping to:
We are working on expanding our shipping options to additional international markets and will provide updates as soon as more regions become available.
1. Processing Time
Orders are processed on the next business day after payment. If you place your order before 12 PM on a business day, it will be handled the same day. Once your order has been dispatched, you will receive a shipping confirmation email with tracking details.
2. Shipping & Delivery Times
3. Shipping Costs
4. Customs & Import Duties
For deliveries outside the EU, customs duties and taxes may apply. These are not included in product prices or shipping costs and must be paid directly to local authorities or the shipping carrier upon delivery.
5. Tracking
You will receive a tracking number via email once your order ships. Tracking information may take up to 24 hours to update.
6. Delivery Issues
Norway Orders:
Orders placed by 12:00 PM on business days are handled the same day.
Free shipping in the EU.
Contact us directly.
ENHANCED GRIP & CONTROL
Holds more edge to handle high pressure, enabling powerful take-offs and smooth, controlled landings.
UPWIND PERFORMANCE
Generates additional line tension and lift for better upwind angles and a wider wind range.
CHOP ABSORPTION
Calms your board in rough conditions so you can stay focused and in control.
LANDING STABILITY
Unique BoxWing-geometry prevents stalling, offering confidence even in sketchy landings.
INNOVATIVE TOPMOUNT
The sleek, topmount-system ensures clean aesthetics and extra deck grip during board-offs.
DURABLE & LIGHTWEIGHT
42g per fin, made from TR90 UV polyamide and A4 stainless hardware.
Ideal for Big Air, Freeride, and Performance Riding. Boosts upwind drive, increases grip and stability and absorbs chop without sacrificing flow or control.
Designed to fit the vast majority of twintips on the market – supports M5, M6, and F-One Standard screw patterns.
KNOWN INCOMPATIBILITY:
All components are made from A4 marine grade stainless steel, including screws and nuts, to ensure long-term corrosion resistance and reliability in saltwater environments.
Bottom-up mounting system with internal threads and a innovative TopMount – ensures clean deck aesthetics, eliminates thread-related drag, and adds grip for board-offs.
Note: A standard Phillips screwdriver is required for installation.
The BoxWing geometry has been successfully used in aviation and motorsports. We were the first to adapt and patent this concept specifically for kiteboard fins – unlocking its full potential on the water.