Existing modelThe Zamberlan 636 Baffin GT RR features the exclusive Foot Wrapping System to firmly hold the foot and allow a precise fit with the single leather upper construction. The Gore-Tex liner provides utmost protection and breathability, while the Microtex wicking nylon collar helps control excess moisture. The Zamberlan Rubber Reinforcement System enhances protection to the upper and toes. The exclusive and amazingly comfortable Zamberlan Vibram 3D sole offers great grip, exceptional cushioning, solid support (TPU stabilizer) wear resistance (PU construction) and a wonderful rocker for better climbing. Back stabilizer offers correct support and helps keeping foot well aligned.