Everything about the Salomon X Scream 3D Women's Running Shoe is in three dimensions, from the powerful 3D Profeel Film chassis, to the cushy 3D Ride EVA midsole ,to the sticky 3D Grip tread pattern, to the comfortably 3D mesh lining. What does it all mean It means all around comfort, protection, and performance for road runners. The chassis provides a winning blend of power and support, while the EVA midsole works with the molded EVA sockliner to protect your foot from impacts and blisters. Salomon also built the X Scream with its EndoFit and SensiFit technologies, which wrap and support the foot for serious comfort and lateral support. The Quicklace system ensures that the X Scream fits your foot like a glove well, not a glove, but you get it. The Contagrip outsole sticks to the ground and is non marking, so you can knock out a quick game of tennis or b ball if you're looking for a break from running.