Upper - A new, engineered warp knit upper improves the fit and feel on your foot. It is breathable and flexible, while still being soft and secure.
Midsole - the new nitrogen-infused DNA LOFT v3 is added to the Glycerin and there is even more of it to give you a plush, durable and responsive ride. A broad platform makes sure you have smooth heel-to-toe transitions.
Outsole - New RoadTrack rubber on the outsole is lightweight, durable and includes recycled silica.