Admit it. It feels good to put on a pair of fresh, clean, dry undies. Conversely, nothing feels as nasty while traveling as putting back on two-day old, sweaty dank underwear. Travel underwear is the solution. It's designed to be super fast drying and fight bacteria and odors. So you just wash them in the hostel sink before bed, hang them to dry and they're ready to pack or wear by the 4 a.m. bus. Also, if you do have to pack them damp or sweaty in your backpack, their antibacterial material helps prevent mildew and odor buildup. So pack a few of pairs or travel underwear and stay clean and healthy where it counts.