They best way to shop for Vibram five finger shoes is to try them on in a store learn your size then buy them on Amazon. The fit was a bit snug. Not too tight just a wee bit tight. I can still wear them comfortably all day. They are perfect for cross training. If you are a serious runner buy the Bikila's you won't be disappointed. These are for cross training. I wear these to do martial arts training because they allow you to be in tune with the ground and to support your stability. I use them for cardio fitness classes and weight training also for light jogging. If you do a lot of random pivoting and spinning around like in a Zumba class for example these are the best shoes in the world to have on. But you can't think of five finger shoes with the same standards you use for regular sneakers. There is no arch support an thick cushion they are made to give the experience of be barefoot while protecting the bottom of your feet. This causes you to do everything the way nature intended. Not to mention they are super cool. I am a fan of 5 finger shoes for life. When you first start wearing them getting them on will be a challenge. Don't worry It will get easier.