Upper: A completely new upper gives you a plush and luxurious feel with a stretchy mesh that has zonal structure and support to feel great on your foot. There is also a gusseted tongue to wrap around your feet and keep you secure.
Midsole: A lighter, softer and more energetic Fresh Foam X with Bio Eva cushioning has been elevated to help you perform your best. An updated rocker profile makes transitions smoother and toe-offs more energetic. The forefoot is more responsive and a bit more structured than previous versions to help those miles roll by.
Outsole: NDurance rubber outsole is durable to keep up with your mileage. New Balance made it a little thinner to reduce the overall weight of the shoe and keep you ticking off those miles.