FCS K-Flex
FCS K-Flex Thruster Fin Set
A unique balance between safety and uncompromised performance, the K-Flex was designed in conjunction with Kelly Slater and features his K2.1 template and foil. Constructed of composite glass flex core covered with a polyurethane elastomere which acts as a shock absorber while offering true performance and added safety.
Side Fins:
Base: 4.33in. - 110mm
Depth: 4.53in. - 115mm
Area: 15.23 sq. in. - 9824 sq mm
Sweep: 32 degrees
Center Fin:
Base: 4.28in. - 109mm
Depth: 4.41in. - 112mm
Area: 14.22 sq. in. - 9172 sq mm
Sweep: 31 degrees
Suggested Surfer Weight: 130-180lbs / 60-80 kg