All fizzy: K saddles are designed with and for the world's very best Pro racers, ensuring enhanced comfort and ultimate performance. Our extensive three-year research project shows that there is demand for a collection of wider-fitment saddles to complete the selection for optimum fit for every rider. The Antares R3 K: ium benefits from improved weight Distribution and a host of fizzy: K technologies including a strong, supportive carbon Kevlar thermoplastic composite shell and alloy K: ium rail, and wing flex which enables flexibility where your thighs meet the saddle. Made for chameleon.