Softer upper/tongue than gen 2 harmony roads. And has a full rubber layer over the bottom. I jumped a wire fence around my track as a shortcut in my harmony 2s and noticed the foam was torn from the top of the fence. Once I saw that and knew that I got a good run for my flat feet in harmony 2’s I decided to try out the 3’s. That torn soul would not be the case in these shoes since the entire bottom has a layer of rubber. I run just as good but noticed my shins do get a little more burn when running in these over any of my other shoes. If using as gym shoes they’re fine too.This shoe has held up for months-It actually has rubber on the bottom, which is rare for a kids shoe these days.Would have preferred a little more arch and heal cushion....Just added by arch supports and they are working great!The sole is too thin but if you change them they becomes very good running shoesPerfecto a la medida de la talla, cómodo y funcional, calidad a buen precio, es usado todos los días en el Crossfit, en el correrReebok Harmony 3's are an added value for runners conditioning for up to a 10K. They're light and for a neutral shoe it's supportive enough for a pronater. The color scheme isn't crazy or extreme, but will keep you bouncing and ready for the next kick in your step.These are the best running shoes. I've used Nikes in the past and they dont come close to these shoes.If you are a serious long distance runner, do not sleep on these shoes.For the comfort they provide they do well. Toe box too narrow. Shoes are wearing quickly!! I work in hospital setting moving around all day, shoes are wearing faster then i expected.