The evolution of our bestseller combines all the features that hikers seek 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 membrane. High-quality terracare® nubuck leather gives the shoe stability and durability. The sustainably produced terracare® leather and GORE-TEX shoes 3L are bluesign® certified to protect people and the environment.