The Extent Nitro Features A Full-Length, Lightweight Nitrogen-Injected Midsole That'S Encapsulated By A Heel Stabilizing Foam To Create An Aesthetical And Technical Balance. In The Ultraviolet Iteration, The Textile Upper Contains Iridescent Details And A Fading Effect On The Midsole, And The Shoe Is Designed And Constructed Around The Idea Of Caging, Thanks To A Hidden Supporting Structure That Holds Up The Lightweight Fabric.