Amazon.com | ROCKROOSTER Work Boots for Men,7 inch,Steel Toe 。Safety Features: Steel toecap that conforms to American Standard ASTM F2413, making it suitable for work, hiking, and hunting. It has a safety rating of ASTM 2413-11 I/75, C/75 SD. Materials: Genuine leather upper with a synthetic lining, and a PU/RUBBER sole. Outsole: Rubber outsole with a slip-resistant tread that is also chemical, oil, heat (up to 500°F), and acid resistant. Comfort & Support: Features PORON materials with Microban technology for comfort, protection, and breathability. Also includes CoolMAX technology for temperature control, moisture wicking, and quick drying. Additional Features: Static Control and Antistatic properties (ESD Standard EN 61340), water-resistant full-grain leather, and a wide EEE width.