Medi has created a luxuriously soft open toe stocking using the latest 3-D knitting technology and microfiber yarns. Their patented Climafresh system adds an anti-microbial feature to prevent the formation of odors. Clima-Comfort technology allows for high fabric breathability, which means you stay cool. Comfort support hosiery can be machine washed and dried. Made in the USA from 63% polyamide and 37% elasthane.