I bought the On Running CloudFlash as a new racing shoe for Mallorca 70.3 as id trained in my old racing shoes too much and they were in need of replacement.
My first impression of them were that they were a beautifully crafted shoe and i really didn’t want to spoil them by wearing them! they are super light, maybe too light for someone like me at around 73Kg.
Having ran in the them for a few weeks now they are broken in properly but i would say that they are definitely a racing shoe and not an everyday training shoe, which is where they are positioned by On Running.
I’m going to purchase a pair of Cloudsurfer to train in every day and see how i get on with them.