I got this sweater in Reykjavik, the capital of Iceland. It is made of 100% Icelandic wool, which is considered one of the warmest and most insulating wools in the world and is water repellant. It will keep you warmer than most winter jackets! This sweater was made by a local craftsperson who had likely spent upwards of 80 or 100 hours knitting it (and that was reflected in the price!) It’s such a beautiful piece of clothing that I have only worn it once or twice ever, and I now live in too warm a climate for it. Because it’s not a branded or mass produced item, it has no tags or official size. It is also unisex. But I would compare it to a men’s medium or women’s large (with flexibility based on desired fit). Rough measurements below: Width (armpit to armpit): 20” Length (shoulder peak to bottom hem): 29.5” Sleeve (armpit to cuff hem): 20.5”