This is a set of three items. Three extra warm items. Uniqlo's Kiwami-Atsu (Extra Warm) Heattech. The wine red and blue ones are size S with U-necks, and the brown one is size M with a turtleneck. I am about 160cm tall and could wear either size without any issues. This is a beautiful set in excellent condition, and there is no visible wear and tear. However, there may be small pills or fold creases on the reverse side, so please understand that these are not new items before purchasing.