Castelli Women's Sinergia Long Sleeve Jersey

A thermal jersey such as the Women's Sinergia Long Sleeve Jersey is great in autumn and spring, with extra warmth easily added with a vest and great as a mid-layer insulator under a jacket in extreme cold. For this reason, Castelli ensures it's not too bulky or complicated, the Warmer fabric trapping enough warmth but still letting your body breathe. 

It also has all the essential features you'd expect, such as a refined fit, perfect pockets for a long ride, and a lightweight easy-sliding YKK® Vislon® zipper. When you do wear it on its own, the small inserts in the chest and above the pockets give it an extra visual touch, and they happen to be reflective should you extend your ride to evening.