SmartwoolMen Merino 150 Baselayer Bottom : BLACKFeature- Durable with lightest merino jersey fabric and nylon core - Merino covered inner waist rubber band and traditional fly design. - Remove shoulder seam at top by applying shoulder panel. - Platform seam structure designed to minimize skin irritationSIZESMAdd to CartBuy NowReviewExchange And Return GuideCancel And Refund GuideShipping Guide