The Scarpa Spin trail running shoes are perfect for fast runners who feel at home on the trails. These shoes are extremely comfortable to wear. The lining only has a seam on the tongue only. In addition, the breathable upper features a reinforcing exoskeleton instead of seams for more lateral stability. The shoes are equipped with the Vibram Fixion outsole with MegaGrip and will thus provide optimal traction. The EVA midsole with a 4mm drop creates more dynamic movement whilst running. Lastly, the shoes feature the Heel Tension system, which serves to add more stability and adaptability when running up steep paths. With the Scarpa Spin trail running shoes, the fun on the trails can begin!