Can pass biserial exhaust duct fresh air inside inspiratory shoe, achieve convection result, make Gan Shuang maintains inside shoe antrum, dress is comfortable can prevent fungus to multiply. 2.

• 可通过双列排气道将新鲜空气吸入鞋内，达到对流效果，使鞋腔内保持干爽，穿着舒适并可防真菌繁衍。