Comfort, durability, and weight: The N45 craves them all. The boots are constructed from a full synthetic upper and lower, with GORE-TEX Invisible waterproof/windproof protection layered inside. The lowers sport a EnduroFoam Midsole, Vibram Megagrip outsole, and thick rugged lugs that should extend the life of the boots. They are also “Re-craftable”, meaning the sole is replaceable by Danner to further extend the life of the boots. They weigh just 29 oz. per pair (on average) and retail for $250 with 3 colors being available. … More Danner N45 GTX: Lightweight, waterproof hiking boots that are nearly flawless.