NFPA certified Structural leather FF boot. The last used to construct these boots has been designed for maximum comfort and accurate fit. A larger, naturally shaped steel toe is used to allow complete freedom of toe movement. A two density polyurethane footbed with TPU arch and heel stabilizer provides all-day comfort and support. Fabric footbed cover absorbs perspiration and is removable for fast drying. The Black Diamond exclusive three point heel lock system is anatomically tapered to secure your heel comfortably in place and eliminate heel slip for increased mobility. This boot features an integrated loop pull on system, a protective steel toe that meets ASTM standards, a double ridged steel shank, a Kevlar® lining for maximum protection, Crosstech® moisture barrier and a Tuffy Shark scuff resistant leather toe cap. This boot is NFPA 1971 certified.