If you don't need the extra wet weather protection of Nano Flex

High-loft double-weave fabric is soft and warm next to skin but doesn’t trap heat

In the mountain

Double layer banding

One seat pocket with concealed ‘B’ logo zip

castelli espresso jersey m Size:M If you don't need theCastelli Espresso Jersey Men. Designed and engineered with an emphasis on comfort and performance, no matter what type of ride you are planning on today, the Espresso Jersey is the best choice. FEATURES Castelli engineered Air_O Stretch fabric for breathability, comfort and perfect fit Fabric optimized for breathability and aerodynamics Raw cut sleeve endings for comfort Three back pockets with fourth zippered security pocket for valuables Full length