Take Patagonia Women's Active Briefs along on glacier treks, cross-country trips or wayyyy across town to the gym. This lightweight underwear is made from a stretchy performance fabric treated with miDori bioSoft for enhanced moisture-wicking performance and HeiQ® Fresh durable odor control. The seamless waistband lies flat and won't roll or bind, and fits easily below layers. The low-profile, single-sided leg binding stays put without chafing.