We are excited to be one of 12 stores in the U.S. to offer the very limited 4331 Iron Ranger! This boot is made of an oil-tanned Black Harness Leather, a tough and durable leather that retains its black color. The highlight of the 4331s are the deadstock green Chemigum sole. This sole was used in older Red Wing Lineman boots dating back to 1956. This limited release was done in collaboration with the famed Riders Room store in Hamburg, Germany, and only 180 pairs are available stateside.