Inspired by the cork soles of the famous U.S.N. N-1 "Field Boot" used in WWII, the 1122 includes numerous improvements, including greater durability, shock absorption, and a reduction in weight. Perhaps the most notable improvement is its traction which comes courtesy of the pulverized hemp cord embedded into the nitrile rubber compound. Each sole is affixed to a thick layer of leather and paired with a matching Dr. Sole 1102w Raw Cord Heel.