Cleanroom polyester socks that are reusable are another type of specialized footwear designed for use in cleanroom environments. Unlike disposable socks, these socks can be laundered and reused for 5 times while still maintaining their cleanliness and effectiveness. These polyester socks are made from 85% Polyester, 10% Nylon and 5% Spandex which gives high strength and good wear resistance. It even provides better heat resistance than nylon socks.