The Reusable Heavy Duty Deluxe Overshoes are versatile, durable and comfortable with a polypropyleneupper, and a compressed polyethylene sole, and an elasticated ankle grip. They are the ideal choice for using within areas that need to be kept clean, and in food processing environments. They will keep dirt and mud from entering any areas, and can resused, so are very cost effective. They are a one size fits all, and are supplied in packs of 40.