I never learn... Oh, how I wish I had ordered these 1/2 size up. I am a true 7.5, and they fit great if you want to wear them for daily wear, but when I run or hike in them my toes hit and they start to hurt. I would definitely recommend ordering them 1/2 - 1 size larger if you plan on using these for running/hiking. Otherwise, they're comfortable and made really well.