Dynafit Alpine women's trail running shoe with excellent grip Megagrip sole by Vibram The Dynafit Alpine women's trail running shoe (code 64065) is ideal for various conditions in technical terrain thanks to its balanced cushioning and comfortable fit. With a drop of 6 mm from the heel to the forefoot, it is the ideal shoe for fast training and running of various distances. Among the outstanding features are its lightness and the grip of the Vibram sole with the MEGAGRIP rubber compound. The rounded Alpine Rocker sole design and balanced suspension achieve a dynamic and responsive feel from the ground.