Best base layer product I've seen. I found them in the Mountain Warehouse shops, just never in my size. So I had to order online and am delighted. Very long back so it won't ride up. Very soft fabric. A nice touch is the zip - it has a little pocket on the top so it won't scratch your chin - unlike many zip tops I owned before! I'm a 12 but had to order 14, so take that into account.