The Mountain 600 Evo 4. 5in GTX Boot is part of Danner's Performance Heritage collection, which combines classic styling with some of today's lighter and newer materials. The Mountain 600 features full-grain leather for plenty of protection and more of a heritage look and is tricked out with premium GORE-TEX waterproofing and Vibram soles for better hiking performance in all weather conditions. This Evo version includes recycled materials in the GORE-TEX lining and the boot lining to reduce waste and our carbon footprint, and it looks the part on the trail and at the coffee shop.