The prAna Willow West 1/2-Zip Top moves easily between a workout warm-up and a day with nowhere to be. We built it from a ribbed TENCEL modal blend with recycled polyester and spandex for a soft drape that never feels stiff. A relaxed fit and drop shoulders keep it easy through the shoulders and arms, while a front kangaroo pocket and half-zip neckline round out a top we reach for on repeat.