Selle Italia Novus Boost EVO X-Cross TM Superflow Saddle - Large. The Novus Boost Evo X-Cross TM Superflow with rail in Manganese 7 mm has been designed for those who make adrenaline and adventure their lifestyle. Like all Novus saddles it’s made with comfort in mind. The Shock-Absorbers located between frame and body contribute to cushioning the vibrations caused by uneven terrains and stresses characteristic of the off-road while the special SuperFabric inserts on the sides help to protect the saddle from abrasions and scratches typical of this discipline.