The boots have a Ethylene Vinyl Acetate sole. They are next EVOE camo hunting boots that are waterproof and unique breathable materials that make your feet in an all-day comfortable condition. The lightweight camo wrapped Eva mid sole reduces the stress and pressure of your feet.The Anti-slip sole and insulated 600G 3M Thinsulate provide great and reliable protection for hunting activities in extreme outdoors conditions. The boots fit as expected. This is a nice quality product and I can give it a 5-stars rating.