There are very few products that truly are the "best" of whatever type of product they are. ExOfficio's line of underwear is the exception. They really are the best travel underwear for both women and men. Made from a special material that's breathable, lightweight, odor resistant, quick drying and long lasting. Exofficio's slogan for their underwear is "17 countries. 6 weeks. One pair of award winning underwear. (Ok, maybe two.)". Sounds about right.