I ordered these shoes and read reviews on other sites before finding them here, so I knew they tended to run large. I went down to an 8 (I usually wear an 8.5). I was concerned if they would be too tight with socks, but they were perfect with a pair of midweight socks. I wanted them to wear when outside walking my dog or to wear into the gym on rainy days. I love the flexibility of the rubber so they slide on and off very easy. I have rheumatoid arthritis in my feet so many shoes are painful. These were so flexible, I had do difficulty or pain putting them on or taking them off. I would definitely recommend them for anyone looking for a great outdoor shoe.