We like the Castelli Alpha Flight RoS Jacket for those late fall rides where we need a bit of extra help staying warm in mild conditions. The chest, sleeves, and upper back feature the Nano Flex Light woven fabric to block wind without sacrificing breathability, while the Nano Flex Extra Dry fabric on the back offers ventilation and moisture-management. This jacket also features plenty of pocket space with three rear drop-in pockets and a zippered side for easy access.