Polishable leather and Nylon upper Slip and oil resistant outsole A.T.A.C. 2.0 Low is the low-top that holds you up all day long. Built for comfort with the 5.11 A.T.A.C. midsole and outsole shock mitigation system and dual-density Ortholite footbed along the full length of the insole. These Pro-Fit shoes are made of polishable leather and nylon to keep you looking good while working hard. Lined with Agion?antimicrobial treatment to protect you from harmful bacteria. The outsole is slip- and oil-resistant to keep you safe on the job.