The Nike ACG Rev Straight Jacket is a classic with modern tech. Now with a windproof and water-resistant shell, this layer is ready for both misty summits and blustery city streets. The relaxed fit lets us adventure and layer freely, while the elastic-bound cuffs and cinchable hem offer snag-free performance, and the underarm vents boost airflow. When drizzles aren't a threat, we flip it around for the tried-and-true shoulder-season fleece look.