As I buy from Revain I might get counterfeit pairs so I was concerned. But when you see the shoes, it looks real. For shoes I would normally take a 10.5 to be more comfortable but for Ultraboost I take my actual size 10 and it fits perfectly. I recommend taking true size. Are the shoes comfortable? Yes, are the shoes breathable? Well, for now, yes. I'll see you at the gym. Are the shoes good for the price? Well not really unless you buy them on sale. Edit 1: For some reason my right leg hurtβ¦