Smartwool men's nts light 195 boxer brief will stay in place and keep you comfortable. flat lock seam construction reduces chafing while the smooth elastic waistband won't dig in. fully functional fly with contrast colour bar tacks at fly opening. logo elastic waistband with wool terry loop next to skin. it is knit in vietnam of 100% merino wool. care instruction: machine wash warm gentle cycle and turn inside out before washing. do not bleach as it damages the natural wool fibre. tumble dry low, lay flat or line dry for best appearance. iron low as hot irons can scorch the fabric. professionally dry clean as necessary.