This underwear is sooo comfortable.  I was advised to order a size or two larger than I normally wear and am glad I took the advice, so be careful with sizing.  I suppose they would dry In a couple of hours as they advertise in a dry or a hot climate but it took them 4-5hours to dry for me which will be fine when travelling as they can dry overnight.  Tried washing them on delicate and they seem no worse for it.  Will not put them in the dryer due to other reviewers cautions.  Highly recommend both for convenience and for space-saving while travelling.