XENO K-FLEX FLIGHTS AND SHAFTS: Created in collaboration with Motomou Sakai, this bold K-Flex design reflects the “Xeno” concept of an outsider. K-FLEX FLIGHT AND SHAFT SYSTEM: Manufactured using advanced injection moulding, the all-in-one K-Flex construction combines shaft and flight into a durable system designed for flexibility, strength and consistency, while preventing flight dropouts.