The K4 Shark-2 Twinset is a high-performance fin set that provides speed, precision, grip, and drive for both quad and thruster setups. Made from d...

K4 Scorcher Rear Twinset is a unique fin set that provides the perfect balance between speed and grip. Developed with the help of Adam Lewis, K4's ...

K4 Fang Free Ride Fin is a top-of-the-line fin designed for freeride activities. The Official Test Centre Weymouth was pivotal in developing this a...

K4 Scorcher Rear Twinset is a unique fin set that provides the perfect balance between speed and grip. Developed with the help of Adam Lewis, K4's ...

The K4 Shark-2 Twinset is a high-performance fin set that provides speed, precision, grip, and drive for both quad and thruster setups. Made from d...

The K4 Shark-2 Twinset is a high-performance fin set that provides speed, precision, grip, and drive for both quad and thruster setups. Made from d...

K4 Scorcher Rear Twinset is a unique fin set that provides the perfect balance between speed and grip. Developed with the help of Adam Lewis, K4's ...

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

The K4 Shark-2 Twinset is a high-performance fin set that provides speed, precision, grip, and drive for both quad and thruster setups. Made from d...

Fill in those unwanted gaps in the bottom of your wave board to remove unnecessary drag and turbulence.  Our blankers are light, a great fit and ea...

Fill in those unwanted gaps in the bottom of your wave board to remove unnecessary drag and turbulence.  Our blankers are light, a great fit and ea...

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

The K4 3SW Freewave fin is designed to provide maximum control and power for freestyle-wave windsurfing, from waves to freestyle and bump 'n' jump....

K4 Scorcher Rear Twinset is a unique fin set that provides the perfect balance between speed and grip. Developed with the help of Adam Lewis, K4's ...

K4 Scorcher Rear Twinset is a unique fin set that provides the perfect balance between speed and grip. Developed with the help of Adam Lewis, K4's ...

K4 Scorcher Rear Twinset is a unique fin set that provides the perfect balance between speed and grip. Developed with the help of Adam Lewis, K4's ...

Base: American(U.S Box), Power Materials: G-10 epoxy When riding the waves you want to have the confidence to push further. The Enduro will give...

Base: American(U.S Box), Power Materials: G-10 epoxy When riding the waves you want to have the confidence to push further. The Enduro will give...