Castelli perfetto convertible jacketthis perfetto convertible jacket from castelli gives full protection in cold conditions but turns into a gabba style short sleeved jerseyjacket in mild conditions when you pull off the sleeves its perfect as a travel piece because you can ride in nearly all conditions with this jacket featuresfully aero fully breathable and fully protected gore windstopper x lite plus fabric for lightweight total wind protection with water repellent finish remove the sl