HALFDAYS Halle leggings, NWT, navy size: S. Our merino wool base layer legging, a midweight blend of merino wool and bamboo to keep you warm from basecamp to backcountry. Technical Details 51% Merino Wool, 40% Bamboo viscose, 9% polyamide 240gsm Non-mulesed merino wool Odor resistant Anti-bacterial Moisture-wicking and fast-drying Naturally breathable, insulating and thermoregulating Ergonomic design lines Side hip pocket