Ibex Merino Wool Men's Woolies 2 Base Layer 3/4 Bottom 100% Merino Wool Imported Tag Free Label The 18.5 superfine wool yarn offers a warm, close-to-the-body fit that moves with you and keeps its shape Midweight interlock fabric performs exceptionally well as a baselayer in your adventures Great for travel - naturally odor resistant and holds its shape Machine washable. 100% Merino wool