COMPOSITE TOE BOOTS: New Balance Calibre boots for men are a stylish and athletic-style electrical hazard and puncture resistant safety shoe. Designed with a water resistant upper and New Balance technology for lasting comfort & protection. STAY SAFE: Calibre boots are designed with a lightweight composite toe and slip-resistant outsole that meets ASTM rating- I/75 C/75 and ASTM F2913-19. Electrical hazard shoes pass ASTM F2412-18a. FEEL FRESH: Designed with a moisture-wicking mesh lining and perforated insoles to keep your feet comfortable and dry DURABLE: Made with a water-resistant leather upper. Boots also minimize fatigue during long workdays. The New Balance comfort insole and Acteva midsole provide the perfect blend of comfort, stability, and flexibility. EXTRA SUPPORT: The Allsite features a strong heel counter that offers extra support where you need it most, making it a great option for workers who spend a lot of time on their feet.