OD Green 100% ozone-resistant and scent-free rubber Wool-felt midsole (9mm) with polymeric foam insulated bottom for comfort Chevron cleated outsole for traction EVA removable insole cushion for comfort Ankle-Fit design for a snug fit to keep boot on in the mud and wet terrain Nylon lining with AgION antimicrobial protection for odor control Fiberglass shank for a lighter weight with maximum arch support