This is not only a wind jacket, it serves well as a mid- or base layer. It has a loose enough fit in the large (I fall right on the line between medium and large sizing guidelines - 5'11" 170 lbs, 42" chest) to fit comfortably over a 100 weight fleece for cold, dry temps when not moving, but not so baggy that I can't wear it under a soft shell as a fleece replacement. Over a t-shirt between the Driclime jackets wind-proofness and water resistance, (light drizzle proof, for a time) and the water resistance of a decent soft shell, it would take a lot to get one cold and wet. The only thing that stops this from being a soft shell is the nylon shell doesnt' seem overly abrasion resistant, and breathability is limited. The driclime lining wicks very well and is soft on the skin, so you don't get too clammy. The chest pocket is ample, as are the hand pockets. If you want zips on the hand pockets, you'll have to upgrade to the Marmot Catalyst. Between the front zip, the pull cord for tightening the neck, the hem pull cord, and the elastic cuffs that can be pushed up the forearms, there's so much flexibility for temp control that this jacket is almost indispensable on any trip.