Timberland Endurance HD waterproof work boots are built for job site performance. With a rugged safety-toe leather work boot, added 200 grams of Thermolite® insulation, and finished with safety features like all-weather outsoles, anti-fatigue technology and puncture-resistant plates. They have an Anti-Fatigue Technology polyurethane footbed for shock absorption and energy return. They are also breathable and feature moisture-wicking lining with anti-microbial treatment for odor control.