The Colorado is a rugged classic, iconic and always relevant. This original style is built to last with proven construction and materials that ensure this boot is durable, comfortable and timeless. Comfort engineered to support your foot while providing more energy return. Full-grain leather and padded upper collar. Durable rubber outsole for traction. Soft EVA foam footbed for long-wearing comfort. The Colorado is a rugged classic, iconic and always relevant. Product Code: COLORADO- Wolverine performance leather, Poliyou sock liner, Goodyear welt construction.