They're a bit small. I ordered 12 which I usually wear and they are barely big enough. Any stronger, and I'll have to send them back. At the same time, they are incredibly comfortable. They breathe very well for those of us with overly sweaty feet, keeping my feet dry almost all of the time. The insoles leave a lot to be desired, but I use special insoles anyway, so I don't care. The laces are also a bit thin. It feels like they're about to break, but I always use paracord for my laces anyway…