DuPont Tyvek 5.4 mil White Shoe Cover with Serged Seams and Elastic top is made from flash spun high-density polyethylene which offers an inherent barrier to small size particles. 18″ X 16″ Shoe cover provides coverage up to calf and offers perfect balance of protection, durability and comfort of any limited use fabric technology. Protection is built into the fabric itself and there are no films or laminates to abrade or wear away. It is used in lead and asbestos abatementremedation, general maintenanceoperations, spray-painting and general clean-up applications.