I just received the shoes so no performance details. However, I am writing because the size does NOT fit. I usually wear a "full" size 13, but since athletic shoes often run small, I almost always have to take a full size (good luck finding a 13.5). I can usually do 14 with thick socks and insoles. But this shoe is so small with a tight toe box - even with thin socks and no insoles - I had no choice but to return the item. Be careful when choosing a size.