Go Sockless with HappyStep Terry Cloth Barefoot Insoles! 2 Pairs, Washable, Reusable What cause Sweaty and Smelly Feet? The main cause of smelly foot is odor. Odor is produced and built up in the shoes because of moisture. Some people's foot sweat more than others no matter in the winter or in the summer. There are many causes of sweaty foot, for example, the material of shoes and socks, temperature changes and foot skin problem. Why Happystep Terry Insoles? 100% Cotton Terry Cloth Top +  Latex Grooved Bottom Padding The factory insoles in your shoes are not designed to absorb moisture from your feet. Happystep Terry Insoles DO! Happystep Terry Insoles are specifically designed to control the moisture in your shoes with maximum sweat absorption and effective odor control. The top layer of our terry insoles is made from super fine pure cotton terry cloth which is soft and absorbs sweat effectively. The bottom layer is made from premium quality latex with breathing holes which provides soft cushioning and active odor control. Features: ultra-lightweight and extremely thin soft and fine terry cloth makes barefoot comfortable and cozy 100% pure cotton terry cloth effectively absorbs moisture latex grooved bottom padding provides full-foot long cushioning washable and reusable two pairs in the package allow rotated use