ultra comfort insoles are specifically designed for everyday shoes. when you wear shoes day after day, odour and wetness can build up. the thin, flat design of ultra comfort insoles cushions without crowding in the shoe, and a powerful combination of technologies provides superior odour and wetness control that lasts for months.,extra comfort for everyday shoes ,destroys odour on contact & absorbs sweat ,specifically designed for men\'s and women\'s everyday shoes ,one size fits all ,long lasting protection 4 months guaranteed