The evolution of our bestseller combines all the features that hikers look for on their journeys. The Mercury IV Low GTX features a flexible and grippy Vibram sole for optimal traction during day hikes. Maximum comfort is provided by the cushioning memory foam (3D Memo Foam) around the ankle and in the insole, as well as a breathable, waterproof Gore-Tex Performance Comfort Footwear membrane. High-quality Terracare nubuck leather gives the shoe stability and durability. The sustainably produced Terracare leather made in Germany and GORE-TEX Extended Comfort 3L are bluesign certified to protect people and the environment.