Flat shoes and travel shoes soles, plastic large, flexible, young people run, jump up to a certain buffer, so many young people today like to wear. However, there are many drawbacks wearing a long-term: As the temperature and humidity inside the shoes to improve young people easily become somra foot ligament length, foot becomes wider, over time become a flatfoot. Sneakers material, mostly of rubber, plastic, sponge, nylon, canvas, etc., ventilation is poor. Khan feet long in this "closed" environment, fungal reproduction and dissemination, occurs ringworm, dermatitis, eczema and other skin diseases. Sports shoes or shoes with flat shoes are a no.
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