I ordered up one size as others said and it fits with enough room for light-medium layers. Great coat for our cooler/temperate/wet weather, but any low-activity days under 40 degrees will require those layers. Great color (sequoia). I don't think this would make a fantastic snow coat, unless you like to layer up (personally not a fan since everywhere I go has the heater blasting at an unreasonable temperature and I hate stripping off and juggling a bunch of layers). Good for moderate-paced hiking on those cold days though!