The women"s Sequoia II features Numentum Hike. A lightweight hiker with a breathable mesh upper to keep you cool and comfortable on the trail. Support and stability from Ahnu"s neutral positioning technology, Numentum, ensures proper foot biomechanics with each step. A forefoot protection plate helps prevent bruising on rocky surfaces. The Vibram outsole provides great traction on a variety of surfaces for under-foot security.