... merino wool silk underwear/baselayer 1,fabric:85% merino wool/15% silk,220g/m2 ,1x1rib 2,much smoother than pure wool lady's merino wool ... silk underwear/baselayerfabric:85% merino wool/15 ... % silk,220g/m2 ,1x1 ribfeature:1,thermal warm,breathable ,natural temperature-regulating,natural wicking and antibacterial.2,wool ... smoother than pure wool.3,elastic waisband ...