The Electra 2 cycling jacket from Louis Garneau will help keep the chill out on those cool days, and if it heats up just a bit the sleeves are detachable and it can quickly convert to a vest. The back is even vented to prevent cyclists from overheating. It features a front two way zipper, as well as chest and back pockets that zip closed to carry that important stuff. There is even a mini-light tab that helps a rider be seen at night.
The Electra 2 is made of Diamond Air fabric that is light and breathable but still can act as a windbreaker, while the Mesh Airdry will wick moisture away. It is a cool jacket for those cool days.