Wind Jacket in ultralight fabric. 100% windproof polyester fabric. Ventilation opening at the back and breathable mesh under the arms to maintain a stable body thermoregulation. This practical garment allows to contrast sudden climate changes, thanks to the ease of use and of transport. Fabric weight of just 45 g/sq m. Waterproof and windproof, this jacket is protective but ultralight and it can be folded into the pocket of the jersey, providing protection against the wind and the elements.