Makai Sickle Flex Single FinAs the name suggests, this curvy and bladey single fin is built ready to reap. Its the flexiest fin we carry foiled to add more release, or spring, out of your turn. Hull boards, alternative shapes and longboards all benefit from this fin, see where it fits your quiver from around 8 and up. About Makai Fins From seed to sea What started as a spontaneous thought sprouted into a line of surfboard fins that represent our passion for surfing. With a