adidas - Badpak GTX (Graphite/Silver/Deep Oxide) - Men's: Innovative Ground Control System(tm) in the heel of this waterproof, breathable hiker allows total control on uneven surfaces and descents. Mountain grip outsole grips on any terrain. Waterproof split-suede leather upper. GORE-TEX(R) upper for complete waterproof and breathable protection. Waterproof meshes for waterproof protection. Synthetic lining. EVA insole for increased comfort. TRAXION(tm) FG for grip and comfort on firm natural surfaces.