1: Elastic and long-lasting double rubber band beam mouth, which ensures the tightness of the elastic and comfortable wearing, and takes care of the long-term storage of the spare shoe cover. When used again, it is as good as ever. 2: The permeability of the non-woven material itself is not only silky soft, but also has better air permeability than ordinary plastic shoe covers, so that the feet are no longer depressed. 3: thick wear-resistant, no odor, no hidden danger Brand General SKU 100516819_NP-1020878102