Before I bought these shoes I read a couple of reviews that said that the space for your pinky toe was tight. I bought them anyway. Now I'm trying to stretch out the pinky toe space. I am planning a hike next weekend. I hope I don't end up with blisters. It's hard to stretch this area out because of the toe bumper (the feature I really liked) placement ending above the pinky toe area. Other wise they are very nice shoes. I don't know if buying a larger size would result in displacement of the arch support... ?