Not quite a shirt, not quite a puffer jacket. Warm and lightweight, this Shirt Jacket is made from a lustrous onion-quilted nylon, which refers to the slightly rounded shape of the diamond pattern. The fabric is also water-repellent, AKA perfect for changeable weather. It features classic shirting details — peep the chest pocket, collar, and tonal enamel snaps at the cuffs and front — but is oversized enough for easy layering.