My first pair of Trance 9's were comfortable from the second I put them on my feet. I had tried several other brands in the running store, but these felt perfect from the get-go. I was not so fond of my Trance 10's but wore them through many a run. I decided to search for the Trance 9's again and finally found them on Amazon, of course! They are light weight, uber comfortable and I'm so happy to have another pair of Trance 9's!