This winter boot is designed to take on the harshest of winter conditions. Crafted from waterproof nylon for a flexible fit, the inside features a Pajar-Tex waterproof membrane bootie lined in a cozy wool blend to enhance warmth and comfort. A removable comfort molded insole with a breathable anti-microbial wool blend lining delivers cushioned support. Pajar's signature ice-gripper sole ensures non-slip grip and traction. Shaft height: 7 inches (from arch). Circumference: 11.5 inches. Heel height: 1.75 inches.