Our CRL Tyvek® Shoe Covers are made of lightweight Tyvek® tops with PVC soles. Tyvek® is a durable tear and puncture-resistant material that remains strong, wet or dry, and will help protect your customer's floor mats from dirt and stains that your shoes might pick up from the shop floor. Interlocking seam construction gives maximum protection from liquid penetration. Extra large boot covers are available on special order. 10 pair per pack.