These sterile shoe covers are made of comfortable fabric and include non-skid soles to help prevent accidental slips as you work. Shoe covers protect against liquids and particulates, so your shoes stay pristine. Each shoe cover is low-linting and sterilized to a 10?6 sterility assurance level (SAL). The fabric helps reduce the release of unwanted particulates in your work area while tunnelized elastic provides a more secure fit. This eliminates raw edges that may also generate unwanted particulates. Each pair of shoe covers is individually packaged to help prevent cross-contamination.