These shoes honestly feel like slippers when I have them on compared to other running shoes.! They are however, one size too small when I ordered them. I ordered 8.5 which I normally wear, but they felt like 7.5 when I tried to run in them. Therefore, I sold the first pair to a friend, and ordered another pair in 9.5 which feels great while I run and after I run. My feet do swell up a bit after a run. My running is casual not Marathon runner. These are minimal running shoes, so beware if you need a lot of support, but they are so light, I almost hate to put on any other shoe to run in. These are amazing shoes if you like the minimalist shoe. I have an extra pair just to run around town in because they are so comfortable.