CastelliWomen's Squadra Stretch Jacket(Return to Product Page)

Works great as a wind shell on top of other layers. Aerodynamically trim fit - including arms/shoulders - which I prefer - it prevents wind puffing up the shoulders and obstructing the view from my mirror. I have both medium and large sizes - medium for over just a jersey, large for wearing over heavier layers. Not really breathable - if you sweat, the inside will have water droplets. One improvement would be to add a pass through for access to jersey pockets.