OIL-, HEAT- & SLIP-RESISTANT OUTSOLE: The heavy duty pattern of this hard-wearing, up to 572°F heat-resistant HRO rubber outsole has been designed for optimum safety and performance, even on unsecured grounds. A stabilizing shank is integrated in the midsole. WATERPROOF: We use an extremely durable water resistant and breathable high-tech CTX membrane. Its microporous fabric structure protects feet from stagnant moisture. SCUFF CAP: Over-the-toe extra high scuff cap for wearers who kneel a lot in their job. ADDITIONAL FEATURES: soft toe (meets ASTM F2892-18 EH), meets ASTM F2913-19 non-slip testing standards and ASTM F3445-21, functional lining with waterproof and breathable CTX membrane, lateral YKK-zipper with gusset.