I have a pair of conflicts in 1/2 size larger than my usual climbing shoe size because I work in a rock gym and I was going for comfort instead of performance. Unexpectedly I got both. I can smear or edge on the smallest nothing holds. The only reason these are not five stars for me is because outdoors on rock, they are not five star shoes. They don't fit in cracks well or smear as well as some other shoes. But since they are comfortable and perform well indoors, they are great shoes for my use. Will buy another pair when they wear out.