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  • surfinlock US Box
  • Looplock Cable



Introducing the surfinlock US box, designed for use with all boards equipped with a US Box fin system, including longboards, single fin boards, stand-up paddleboards, windsurf boards, and foil boards. This surfinlock is incredibly easy to use - simply insert it into the US fin box and slide the thicker part down to lock it in place. When used with our Looplock cable or any other lock and cable, it cannot be removed. Its compact size allows you to leave your fin in on most boards while locking your board on the roof of your car or anywhere else you need to secure it. Crafted from high-quality stainless steel, this surfinlock is built to last, keeping your board safe and secure.


Made for: All boards with a US Box fin system (SUPs, longboards, single-fin boards, windsurf boards, foil boards >> see fin guide, if in doubt)

The clever mechanism: Just slide it down!

The cool extra: On most boards, you don’t even have to remove your fin.



The Looplock cable is a versatile locking solution that pairs perfectly with your surfinlock. Its compact size and number dial make it a convenient travel companion that eliminates the need for carrying keys. The unique Looplock design allows you to lock multiple boards together, making it superior to standard double-loop cables. The cable can be looped around a fixing point, and you can then secure your board or several boards one after another. It works with all our surfinlocks and is also suitable for protecting other valuable equipment such as bicycle trailers, camping chairs, or any gear that needs to be secured.

We have 2 Looplock variants:

  • New 5mm cable diameter (perfect for traveling and against casual theft)
  • 8mm cable diameter 


Surf or SUP Version

Both US-Box surfinlocks work for all boards with US-Box systems, but if you use it mainly for paddleboards, go for the SUP-optimized version. Together with SUP experts, we have made minor design adaptions, extra optimised for paddleboards with a wider fin slot.


NEW Set: surfinlock US Box + Looplock cable (5 or 8mm)

59,90 €Price
VAT Included
Expected shipping July 24th

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