I am an outdoorsy type. I walk in the woods or fields nearly daily. I mostly wear Merrells or Keens. I use the treadmill 2-3 times a week. I have a pair of shoes I wear on the treadmill only. Laugh if you will, but they are house brand joggers from Walmart. Athletic Works brand, I believe. They are very light weight and slip on due to elastic laces. They are less than 20 bucks.