The Vibram Five Fingers Spyridon LS Women's Barefoot Trail Running Shoe is Vibram's first trail running specific model. The Spyridon LS provides the perfect balance of foot feel and protection on rugged surfaces. Minimalist 3.5mm Vibram rubber sole provides impact protection from stones and debris, while better allowing proper barefoot dynamics. 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 Stitched in polyurethane insole protects skin and foot tissue during longer runs Coconut Active Carbon upper offers natural breathability Adjustable speed lace closure ensures a secure fit. 3M reflective applications for safety after dark. Machine Washable. Air Dry. M4125.