Dr. Martens Men's 2976 Snow Boot Leather Imported Synthetic sole Shaft measures approximately 6" from arch Boot opening measures approximately 10" around SNOWPLOW - A water-resistant leather that's ideal for wearing in snow. It repels salt and grit, is easy to clean and won't stain from water exposure. DR. MARTENS DURABILITY - Engineered with a tough and hardwearing Goodyear-welt and air-cushioning. DM's WINTERGRIP SOLE - A new high-performance PVC/rubber hybrid sole, with EVA grooved cleats providing superior traction, grip and durability on slippery surfaces.