So yes, you can wear this super warm, super durable wool jacket liner as stand-alone outerwear, or you can help it do its original job as a zip-in liner for your Filson field jacket or coat when extra insulation is needed. Made with 100% virgin wool, it breathes while wicking away moisture, and will give you wind and water repellency for comfort in all kinds of weather. A standing collar will gives shelter to your neck, and fitted cuffs keep debris, rain, and drafts out. Oh, and there are also handwarmer pockets and a drawcord adjustable waist for a custom fit. Pretty good for a single garment that serves doubly. Forest Green only.