The insoles are made of latex foam, covered with a special fabric made of thermoactive polyester fibers, which provides ventilation and keeps the skin surface dry and gives a pleasant feeling of freshness. Hand washable at 30ﾂｰC. Main features: - Thanks to the thermoactive fabric, the insole gives a pleasant feeling of freshness. Ventilates and keeps the skin surface dry. - Improves ventilation inside the shoes. - Cushions the feet. - Reduces foot fatigue.