The DuPont Tyvek® shoe covers are a more tear-resistant type of shoe cover. This material can is stronger and can withstand many snags and scrapes that the polypropylene can't. In addition, the DuPont Tyvek® shoe cover can also withstand light splashes and moisture. The DuPont Tyvek® material shoe covers work great for heavy duty industrial applications, working on potentially slippery smooth flooring, and in the medical field.