The North Face Mountain Jacket Lightweight and packable with included drawstring bag. SUMMIT SERIES Size M Features an inner zippered pocket. I bought this for hiking. I wore it once for a short time. It doesn't seem to fit me right, so I hope someone else will wear it. The underside of the arms and the sides are made of jersey material, making it very easy to move in. It's very light and can be stored in a small drawstring bag. I think it's also convenient for adjusting your outfit when walking around town.