100% merino Women’s Smartwool 1/4 zip in very good shape. Midweight 250 g/m2. No obvious signs of wear. Technically a base layer but I wear these tops every single day thru the winter, at home, to work, everywhere. Older Smartwool is much snugglier in my opinion! I have same in bigger size and I wear that one, looking to make space in dresser.