fizik-tundra-m3-saddle-with-kium-rails-black-silver
fizik-tundra-m3-saddle-with-kium-rails-black-silver, Tundra with Wing Flex shell flexes downward where the inner thigh contacts the saddle, allowing more efficient pedaling and full-range of motion. M3 features a fiberglass thermoplastic composite shell.Wing Flex: shell flexes downward where the inner thigh contacts the saddle, allowing more efficient pedaling and full-range movementComposite Glass ShellNot ICS compatible