My son worn these at a research camp in the Yukon. everyone in camp had icebreaker underwear, everyone. You only go to town every week or two to shower so you wear your underwear for 2 weeks strait. After the shower you put it back on. Really it is too cold to take it off and no place to wash it. Icebreaker does not itch. It does not stink. ever. For Christmas all he wanted was some thing by Icebreaker. If you are going to be out in the bush take as much icebreaker as you can.