The New Balance Fresh Foam X 880v15 gives an extra 9mm of foam underfoot, going from 29mm in the heel to 38mm, giving you increased comfort and letting you run for longer. It's the same Fresh Foam X platform from the latest version, meaning you get a data informed outsole designed to complement the build for the smoothest possible transitions, from your runs, your walks or all-day wear. The Gore Tex upper means the rain and puddle splashes stay on the outside, leaving you dry and focused on your run. Premium details in the tongue and collar provide extra comfort from step in, to your last mile.