Nitrene is a brand known for its durable and high-quality work boots, often featuring a combination of leather and rubber materials. These boots have a classic lace-up design with a distinctive fringe detail on the toe. The color scheme includes brown leather uppers and black rubber soles, which are common in work boots for their durability and grip. While the search results mention "nitrile rubber" as a material used in some boots, it's important to note that Nitrene is the brand, and the material could be nitrile rubber or another type of rubber. The boots seem well-maintained, suggesting they are either new or have been properly cared for. women's Size 10