I bought these and I've just put around 29 Km (18 miles) on them and they feel great even though I should have bought 8.5 UK instead of my usual 8. My big toe feels kinda tight in there. Great shock absorption because they have gel in them (and you can really feel it when you're running downhill and your height is more on your heels). Let's see how far these will go. So far I'm loving them.