Lowa Men's Ronan GTX Mid Hiking Boot 100% Leather and textile Vibram sole Lowa Control System features a moisture management system to keep feet dry that helps eliminate blisters and hot spots Monowrap construction wraps the foot in a lightweight yet firmly supportive polyurethane frame to reduce overall boot weight by using lighter weight upper materials while retaining needed laterial support Full length nylon shank with polyurethane midsole provides torsional support underfoot