The PureFlow has been a great model over the years, but it has reached the end of its run. The PureFlow 7 will be the last update of the PureFlow and has been retired.
The PureFlow offered a sock-like fit with a 4mm drop to help you feel connected with what you are running on. We do not have another neutral 4mm road shoe in our lineup today, but here are some similar options I think you may enjoy for their lightweight feel and responsive cushioning: