Polypropylene:

51478-3 Sky blue shoe cover, MED-LRG-XLG available, 300ea/cs. 51467-3 Sky blue shoe cover w/clear-white anti-skid bottom, MED- LRG-XLG, 300ea/cs. 51488-3 White shoe cover, universal sized, 300ea/cs. 534672-3 Sky blue shoe cover, ultrasonic welded, blue skid bottom, universal size, 300ea/cs. 534673-3 Sky blue shoe cover, ultrasonic welded, clear-white skid bottom, universal size, 300ea/cs. 54478-3 Sky blue shoe cover w/ conductive strip, 300ea/cs.