I got a bigger size just in case, but the size is good afterall.
Read someplace that spraying a bit of water on them helps them not break so easily. I purchased a pair from another seller before and they were very flimsy. These are good thus far. I wore them for about 3 hours at a convention and they did not break on me. You could even say they are comfortable, I wore them without the Tabi socks because I was cosplaying Kyoraku