These are comfortable and light weight. The heel is a little big, the arch is a little forward. I got these for travel because I’ve seen people pop these on & off at checkpoints and they are pretty ultimate road warrior shoes for long travel days and hotel gyms. They’ve got a slightly rounded bottom that takes some getting used to. My runners are zero drop which may explain why these feel weird to me. That being said I wear these a couple of times per week, and I’m thinking about buying another pair.These shoes are extremely comfortable! From the moment I put them on and took them off, my feet felt cushioned. It feels as if you are walking on air. I love these shoes.I bought these shoes after much research and trial of wider cross country and road shoes so the narrow fit was a nice change. The design offers plenty of traction and cushion. Once the tack patches wear though this fades some. They breath very well and I've had good luck in all terrains and weather conditions. The Colodflows are about 1/2 a size smaller than what I would normally buy even after foot swell. I've put several hundred miles on my first pair and liked them so much I bought two more to keep running in.They run a little bigMy man is on his feet all day and these shoes are top notch! Worth every penny! He needs more!They provide a raging hard on for me when I run. And they are shoes.Best shoe I’ve ever bought. No more foot pain while running or after.There is nothing to dislike about this shoe. It’s comfortable and light weight….. I walk as my exercise and these shoes are perfect for the task.First run tonight and I have a load of little blisters on the front pads of my feet, I knew it was going to be an issue after the first 500 metres. I’m pretty sure it’s down to the wafer thin front parts of the insoles as the blisters match where the ventilation holes in the insoles are. Should have stuck with brooks glycerin, lesson learned. Glycerin 18 it is.Best trainers I have bought. They are comfortable and supportive, yet bouncy. Suit me perfectly for the 4-6 miles that I normally do. The elasticated loop to tuck the laces in are a great idea.The only reason that I haven’t given 5 stars, is because they do tend to trap small stones, due to the design of the soles.While the Amazon site originally didn't do a great job of keeping me updated on package track and trace. When I finally got to the company itself, they were super at getting me straightened out with the correct order and track and trace information that showed me exactly where everything was in transit. They wen above and beyond with followup texts to make sure I got my product as expected.The shoes are fabulous and exactly what I expected. How comfortable! It really is like walking on clouds...This is my third pair of ON Cloudflow trainers, perfectly comfortable , I always buy half size bigger, never experienced any blisters nor black toes nails . Highly recommendPasst perfekt, komfortabel in jeder Situation.Nur für mich als alter Autofahrer gibt’s ein Manko: die Sohlen sind so weich, dass ich die Pedale kaum spüre. Komisches Fahrgefühl.Aber zum Autofahren sind die Schuhe ja auch nicht gedacht/ausgelegt. :DWenn bloß mal alle Produkte eine solche Qualität hätten. 5 Sterne.