As this is my first real pair of sneakers I want to be positive and try them. They are advertised as true to size but they fit really snug on my forefoot. I hope they stretch like most shoes, otherwise I can't use them. I walked around the house with discomfort in it for about an hour. Fingers crossed, that's change. I am considering ordering half a size larger. Now they look great and are lighter than I expected. When they stretch they are perfect for the trail running/hiking I have planned.