The Mercer boot is equipped to take on the harshest of winter conditions. The waterproof leather and nylon upper keeps you dry and comfortable while allowing a flexible, comfy fit. With Pajar's signature ice-gripper sole you'll have surefooted traction to keep you walking with confidence. The upper is entirely seam-sealed and comfort rated to -20°C featuring Pajar's weather-proven waterproof membrane bootie to keep your feet snug all winter long with cozy lining. Premium removable comfort molded insole features a cushy wool blend that is both breathable and anti-microbial.