 This is the Rocklight 345 GTX with Graphene Grip, the world's toughest grip for fast hike adventures over any terrain. Graphene Grip delivers insane sticky grip and increased durability, all in one rubber, no compromise. The midsole features an 8mm drop from heel to toe and uses our power flow material, which gives 10% better shock absorption and 15% better energy return. Inside the midsole, there's a lightweight flexible rock plate that provides underfoot protection when fast hiking. Inside the upper, the Gore-Tex product technology delivers increased waterproof protection and 365-day climate comfort. This is the Rocklight 345 GTX with Graphene Grip, the world's toughest grip for fast hike adventures over any terrain.