Odor-Eaters Active Wear Insoles destroys odour and absorbs sweat.Odor-Eaters Active Wear Insoles are specially designed for sneakers and sports shoes. Now your sneakers can stay fresh and comfortable no matter how active you are. Odor-Eaters Active Wear insoles contains activated charcoal to lock in and destroy odour, Insta-Fresh® to instantly neutralise sweat acids that release odour and a powerful anti-bacterial agent to fight odour-causing bacteria, providing odour and wetness control that lasts for months.