The Passista Long Sleeve Jersey is made for cooler days of cycling, where you don’t need a heavier-weight winter jacket but it’s still too cool for a short sleeve jersey and arm-warmers. In order to keep in body heat, Castelli have used their cosy Warmer fabric on the body and sleeves. The fleece inner traps warmth brilliantly but it still lets some airflow though to prevent you from overheating. Meanwhile, the sides use Warmer X-Stretch. This ensures your jersey has a nice snug fit for efficient pedalling, while still offering flexibility. Practical features also make this jacket a winner. The easy-sliding YKK Vislon zipper makes it easy to control ventilation and thus regulate your temperature. Gripper elastic at the waist keeps the fit secure and the 3 rear pockets are there for all your cycling essentials.