Don't Ride Without It A lightweight jacket is a vital bit of kit for when battling changeable weather conditions in any season. From the cool of spring, chilly summer mornings and in to darker autumn days Castelli's Superleggera jacket will offer you a vital extra barrier against wind and showers. The use of Pertex Quantum base fabric, which has low air permeability, effectively prevents windchill as you ride. The Stretch Torrent waterproof fabric insert on the lower back keeps any road spray at bay increasing comfort in sudden showers. The packability of this Superleggera jacket also means you can pop it in a jersey pocket ready for when you need it most. Features Pertex Quantum base fabric with low air permeability to keep you dry. Stretch Torrent waterproof fabric insert on back. Extremely packable. Ykk Vislon zipper. Front and rear reflectivity.