These XtraClean™ disposable (machine-made) shoe covers are made of a polypropylene fabric and are 100% latex and silicone free. Ideal for transitioning between “clean” and “unclean” areas. These shoe covers are popular in medical and pharmaceutical environments, GMP facilities, precleanroom gowning zones and for general hygiene. Welded seams are clean and strong for added durability. Packed: 300/CS, Sizes: LG and XL