On shorter rides I used to ride in Keens - the toe box is so wide I had trouble with getting them into my clips. And while they have a super-comfortable anatomical footbed, the soles are really flexible and my feet would get tired and sore as they flexed over and around the pedals. Same was true when I rode in sneakers. Getting a pair of cycling shoes "cured" my foot pain - I bought Sidi MTB shoes and didn't get cleats or clipless pedals. They still helped with efficiency, even without clipless!