Backcountry Cedars RWS Merino Mid Weight Baselayer Crew Top Size Medium Excellent preowned condition. Please refer to photos for approximate measurements. - Heritage-style baselayer top delivers performance comfort for winter fun Merino wool is RWS-certified for animal stewardship and responsible land management - Wool-blend fabric is soft, naturally odor-resistant, and thermoregulating - Recycled nylon and spandex boost structure, strength, and stretch - Flatlock seams, set-in sleeves, and gusseted underarms increase active comfort - Integrated thumbholes keep sleeves in place while layering and adventuring 84% RWS merino wool (TE-99952623 certified by IDFL), 14% recycled nylon, 2% spandex