Professional protection for firefighters. The PATROL 5.1 was developed with the specific needs of firefighters in mind, combining robust protection with lasting comfort for long work shifts. Built for extreme environments, this boot offers the reliability and performance that emergency professionals demand in critical situations and adverse conditions. Sole: Firefox-Vibram (fire-resistant rubber) Toe: Fiberglass midsole: Kevlar Upper: Full-grain leather + textile lining: Sympatex waterproof membrane Membrane insole: Lavoro X-Max