S3, safety boot, durable textile, black. Durable PU / PU outsole, black / blue (colour code: 1022) or black / grey (colour code: 1012), fibreglass toe cap, puncture-resistant textile midsole, metal-free, high-quality COMFORT STEP insole, ergonomically shaped, modern design, best possible slip resistance (SR), width 11, well-padded shaft for best possible support and comfort, heel lining for easy on and off as well as heel reinforcement made of robust microfibre, additional scuff cap, DGUV Rule 112-191-certified, ESD-capable. Type: Article: Version: Safety boot. Colour description: black / blue. Gender: Unisex. Size (D): 40.0. Main colour: black. Sole material: Polyurethane (PU). Secondary colour: blue. Safety level: S3. Closure system: Lacing.