A unique, intelligent system which adapts shoes to suit weather conditions has been jointly developed by IQTEX and BASF. To make this possible, IQTEX has processed a special superabsorbing fleece from BASF into an innovative ventilation element known as Vayu Verde®. The fleece in Vayu Verde® contains superabsorbent polymers, marketed by BASF as Luquafleece®.
In contrast to conventional functional clothing, shoes made with Vayu Verde technology are not only breathable but, depending on the weather, can be as air-permeable as a cotton T-shirt or as watertight as rain boots. Vayu Verde® functions like a flower that closes up in the rain and re-opens when it is dry. When the material gets wet, for example if the wearer steps in a puddle, the superabsorbing fleece in the ventilation element immediately expands and self-seals the system. It even stays watertight under high pressure. Then, as soon as the material integrated into the sole of the shoe dries, it regains its breathability within minutes and the wearer feels a cool and pleasant sensation. Whether rain or sunshine ¡§C feet will always stay dry. This functional material can absorb large amounts of aqueous liquids and thanks to its reversible moisture binding system is capable of absorbing and releasing large amounts of moisture and humidity. It is already being used for increased climate comfort in office chairs and protective clothing, for example. The Vayu Verde® technology is not only suitable for shoes but could also be used to manufacture jackets, gloves, tents, safety helmets, textiles and sports accessories to achieve optimum ventilation. This innovative technology could also be deployed in electronic devices or medical products.