The Argon Hi Side Zip ST is designed for those who need a reliable and comfortable boot for demanding environments. Made from premium nubuck, these boots offer durability and a sleek look. Features Soft, breathable nylon mesh lining and a Nylex sock lining to keep your feet dry and comfortable. The soft EVA foam footbed ensures long-lasting comfort, making these boots ideal for all-day wear. The durable and lightweight EVA midsole provides excellent cushioning, while the durable rubber outsole with SRXTM extreme slip resistance offers superior traction on various surfaces. Durable & long lasting YKK Zippers for easy on & off. Equipped with advanced technologies like SRXTM: Extreme Slip Resistance, Steel Toe (ST), Slip Resistant (SR), SRA, and HRO, the Cat Footwear Argon Hi Side Zip is designed to keep you safe and comfortable in any environment. Certified to AS 2210.3:2019 Standards.