Sick of a cold bottom? Well the advantages of wool are warmth, temperature regulation, less smell than other options and quick drying. It seems that icebreaker has got a perfect (albeit expensive) solution to underwear in the bush.
I took these backcountry on a recent winter snow trip. They were comfortable, warm but didn't overheat like polypropylene can.
I look forward to trying these out on a longer trip where I'll need to wash them and see how they go in varying conditions. So far though I'm very happy with them, if just Icebreaker would 'lend' me some more of their stuff to test out.