Sympatex AirJet improves shoe breathability

24/07/2009

Munich-based manufacturer of functional waterproof breathable products Sympatex claims it has come up with an effective system that can control body temperature in footwear.


Its AirJet Technology, a high-tech upper/lining combination, was presented at OutDoor Friedrichshafen, which ran July 16-19. The system will be integrated in footwear products from summer 2010.


According to Sympatex, the technology provides maximum breathability; not simply via the sole, but throughout the shoe’s entire upper material. A hydrophilic inner layer ensures that moisture is transported away from the foot quickly. Then the liner absorbs the sweat over the entire area and passes it on to the hydrophilic membrane. The more strain the membrane is put under, the more it stretches and this increases breathability as well as water vapour removal.


The upper’s outer layer uses a weave structure featuring a special fine-knit spacer fabric. This material lies directly over the membrane and works with the foot’s natural rolling movement to increase air circulation. This additional ventilation boosts the evaporation of moisture in the shoe, assisting the body’s own temperature regulation and preventing any build-up of heat.