Designed for people like us who work, live, and play in the mountains, the Marmot Cropp River Jacket is a high-performance line-of-defense against ever-changing alpine weather. It's outfitted with a burly yet breathable two-layer waterproof GORE-TEX membrane, so whether you're hiking, mountaineering, or climbing, you'll be able to stay dry when stormy weather rears its ugly head.