The Women's Smartwool Merino 250 Baselayer Bottom is a tried and true layering piece that has been updated to fit and enhance a range of body shapes. Made of 100% merino wool using an interlock knit this pant offers comfort, breathability, thermoregulation and odor resistance. The merino-covered waistband and flatlock seam construction provide comfort and prevent chafing, rounding out a winter ready baselayer.