For ultra-light Nike Free Run 2 shoes,the most important aspect is not only the light (UltraLight).Of course,another is breathable (Ventilation) of the.Light  free run shoes is so light that like as an apple,and it is much lighter than all other brand free run shoes.This feeling is hard to use the words to describe,it can only put on your foot that you will enjoy a real feeling.Surface of the thin spun MonoMesh mesh and sandwich mesh to create the shoe body,compared to the previous brand shoes  that the pores of the mesh,it is definitely a great success to achieve lightweight and superior breathability.When you are running or sporting,you can definitely feel the breeze caresses your foot in a great pleasure, the feeling is hard to show in language.Please come and enjoy Free and Fast Delivery!