Our first trail running–specific model, the Spyridon LS provides the perfect balance of "foot feel" and protection on rugged surfaces. A minimalist Vibram XS Trek rubber sole with an aggressive tread design provides sure-footed grip in all directions, while better allowing proper barefoot dynamics. A moulded nylon mesh midsole provides impact protection from stones and debris, dispersing impact over a wider area. Its closed speed lace system accommodates a wider foot or higher instep while the naturally breathable upper has an adjustable hook-and-loop closure for a secure fit. A velukid Microfiber strip on the upper increases the lateral stability and the TPU Gambit all around the ankle and heel improves the stability and containment of the shoe. Polyurethane printing on the toes and upper increases durability and strength and 3M reflectice applications have been added for dark conditions. A stitched-in polyurethane insole protects skin and foot tissue during longer runs.