Went to Scotland to run my half marathon this year. The airline lost my luggage with my running shoes. Went to a local sports store and saw these and wondered its weight and how comfortable. I had one day to run the race; no time to break in and I ended up running the race 2 minutes faster and no blisters. The best shoes I have had and ran with. I have changed my brand name to "on". Thank you "on" for making my age (58) feel so young. Cant wait for my next race!!