Vibram FiveFingers' first trail running-specific model, the Spyridon LS provides the perfect balance of "foot feel" and protection on rugged surfaces. A minimalist 3.5mm Vibram rubber sole provides impact protection from stones and debris, while better allowing proper barefoot dynamics. The aggressive tread design delivers sure-footed grip in all directions, molded nylon mesh in midsole adds a "rock block" effect, dispersing impact over a wider area. The Coconut Active Carbon upper offers natural breathability and an adjustable hook-and-loop closure ensures a secure fit. 3M reflective applications for safety after dark.