9001 ISO Certified Shoe Covers with Conductive Strips are an economical way to protect static sensitive devices in the work area. A full length non-woven conductive carbon strip is added to the bottom of our Shoe Covers: regular sole polypropylene, skid free polypropylene, and polylatex. The strip provides adequate length for body contact when worn with most shoe styles. Shoe covers are sized in extra large for versatitlity. Packaged: 100 per bag, 3 bags per case. 300 per case.