The present invention prevents, ahead of time, the occurrence of moisture on and malodor emanating from the under-surface of the cushion, and eradicates the cause therefor (heat - cold air = 0), thereby minimizing the occurrence of hemorrhoids, and thus contributes to creating a hygienic and civilized indoor and work environments with no environmental pollution from unhygienic interior or work spaces.
스포츠용 부츠patents-wipo patents-wipo