Zephyr Desert GTX Mid TF Fast and Light Hiking Performance: Lightweight, supportive, cushioned and stable, these comfortable boots suit the needs of most casual hikers. Ideal for on-trail adventures, over moderate terrain, supporting backpacks up to 25 pounds. Bonus: Zero break-in time! •UPPER: Split leather/Cordura®. •MIDSOLE: PU Monowrap® Frame, a new, patented construction technique that allows us to reduce overall boot weight while retaining important lateral stability.