Chris -- I'm pretty skeptical of temp ratings for garments. There is no industry-wide standard the way there is for, say, sleeping bags (which use the EN rating system to give you a consistent idea of how warm they are, and give different ratings for survival vs comfort). When a coat gives a temp rating, it's usually from the marketing department, not product testing. I go by fill weight in ounces to get an idea of how warm a coat will be. Patagonia lists theirs on the website, but most gear manufacturers should be able to give you an estimate if you contact their CS.
Crazyone -- this is an XS. Some reviews made me think I'd need a S, but I went with my gut. I'm wearing a medium-thick hoodie underneath in the photo, so it's fitted but still layerable.
