WHAT IT IS / PRODUCT FEATURESLightweight, sleeveless merino wool base layer provides plenty of warmth even when wet. Material 125 g/m2 with 48% merino / 47% recycled polyester / 5% elastane provides the warmth of wool with the durability and sweat wicking of polyester.Machine washable.Low collar.Color: 010 blackSizes: XS - 2XLWeight: 90g. (L)Temperature range: 12 - 18 ˚C Material composition:48%wool 47%polyamide 5%elastane When you want to dress for plenty of warmth on the torso, but lighter on the arms. This sleeveless base layer is our warmest insulation for your torso.