Great urban running shoe for beginner-to-medium runners
I have got two pairs of On running shoes now, flow and rush. To this day, i have been running above 150k on the flow and 50k on the rush and i have some love and hate on both shoes.
First of all, the design of the flow is impeccable, really stands out from the mainstream choices. For the cloud pods, at first i am at most skeptical, thinking it is mostly marketing bla bla, but not until I have actually put one on. The changes aren't as radical as you might be expecting, but it is definitely incremental.
The flow offers an amazing cushioned landing on city roads as well as paved rubber roads, i can hit 21k easily without putting any stress on my calf and knee. And this is something that the Rush does not have. (Which makes sense, for the rush being a primarily racing shoe that has a minimal cushioning).
The upper of the flow is double-layer, it is in general not an issue unless the temperature dials a bit up above 25degree. I primarily use this shoe in shanghai street, and it can easily gets above 30 degree starting the mid may, and this might become quite an issue if you are heat sensitive. The rush, being only the single layer upper, has an amazing advantage over the flow in this regard.
That being said, if on is making a shoe that combines the cushioning of the flow and the upper of the rush, i'd be the first customer to order. But until then, I'd be content with my two pairs.