More or less a beefed up rain jacket, the Marmot Men's Streamline Jacket is a waterproof, breathable shell that has a DriClime lining to help take the chill off and prevent this coat from feeling damp and clammy. Not only is this jacket 100% seam-sealed, but there is a roll-up hood with peripheral cord adjustment, and a double storm flap over the front zipper. For warmer conditions there is pitzip ventilation, there are handwarmer zip pockets, an elastic draw cord hem, and it has a standard fit.