Fiberglass US-Box Single Fin Flex

59,90 incl. VAT

  • ALLROUND – The flex single fin in 8.0” is offering more flex than a traditional all-around longboard fin.
  • COMPATIBLE – Fits any longboard or stand up paddling (SUP) board with US fin box, whether hard or inflatable boards
  • BUNDLE – Single fin with fin screw

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eisbach riders

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Eisbach Riders Pureglass Single Fin Flex

A popular single fin choice, this flex fin is a very versatile fin offering more flex than a traditional all-around longboard fin such as the rake fin. It can be used in all boards up to 10-foot nose riders. The added flex makes the board feel a bit looser and adds a bit more liveliness.

The flex fin features a wider base, tapering down to a narrow tip and offers very little drag. With the US box, the fin fits all standard surfboards and SUP boards. The fin is suitable for surfing in the sea, paddling in the lake or on the river and come with a mounting screw that you can start driving.



  • SUP or longboard single fin
  • Colour: Green
  • Configuration: Center fin
  • Fin shape: Flex fin
  • Material: Fiberglass
  • Flex: Maximum Flex
  • System: US box fits all standard surfboards and SUP boards.
  • Size: 8.0 inches / 20.9 cm (fin plug length: 7.1 inch / 18.0 cm)



Set of 1x single fin and 1x mounting screw

Additional information




Eisbach Riders

Eisbach Riders is a surf brand from Munich, Germany that specializes in surf equipment and accessories. Their products cover surfboard fins and leashes for river surfing, stand-up paddling (SUP) as well as kitesurfing. Their focus is to provide sustainably packaged and affordable products so you can feel good about jumping back into the water.
eisbach riders