TK43SW Freestyle-Wave Rear Fin (Single)is designed to take anything you throw at it! Waves, Freestyle, Bump and jump or just blasting fully powered, the 3SW has the power and control to not let you down. Plug one into your wave board for a boost in onshore slogging conditions.Flex: StiffSizes: 18cm, 20cm, 22cm, 24cm, 26cm, 28cm, 30cm, 32cmUS and Power Box HeadsThe 3SW freestyle-wave fin. Developed with help from theOfficial Test CentreWeymouth. A fin that will give you amazing speed and control, secure and loose carving on the fast flats or choppy waves. The material is K4s Super Stiff, the ideal composite for freestyle-wave fins; great reflex, stiff enough for excellent acceleration and direct response, enough flex for speed, grip and control. The 3SW also works great in big wave boards.Check some early feedback in our blog post, Introducing the 3SWMore information about our Super Stiff materialFull specifications here:Fin Specs