On the left in the photo is this year's Dark Angel fleece-lined Heattech, and on the right is last year's Dark Angel fleece-lined Heattech, which I hadn't even opened the bag for. I only tried on this year's. The size is M-L, which was too big for me, so I'm selling them. I think it will be too big for those who usually wear size S. It's a set of two.