I have two pairs of exofficio and a pair of thermals i travel with! With exofficio are the SHIT! so easy to lift from REI and they last really long,don't smell clean really easily and dry super fast, and their boxer breifs are really comftorable! they advertise for their underwear i have "17 countries, 6 weeks, 1 pair of underwear" I highly suggest them! Same thing with sox,i get merino woolsox.Filson makes the BEST sox, i really want to try their underwear. I dumpstered their leather and made the best belt i have ever had out of it, two inch wide 1/4 inch thick vegtable tand leather! BUAHAHAHA!