These shirts are your name "Cool DRI" (probably better dry) full justice. If you are traveling in hot climates, they are almost indispensable. Although the Dinger "full plastic" are occurring at earlier shirts this type odor problem hardly arises. If they but through sweating during exercise times violently, they can go wash with detergent or shower gel travel and hang near the air-conditioning (or in front of tent) - after a few hours they are again dry and fresh. Even after such a "provisional refresher" they do not tend to wrinkle.