5 USA regularmente y en este caso pude hber pedido 10 sin problema. These shoes were very light and could have been comfortable, but inside the shoes the material had places where it was rubbing, so I sent back. So pretty though! Have not installed but They look good there was a weird second while flipping through that I found a sticker of some random anime character, BUT THERES STILL SO MUCH NARUTO ???? The chemistry between the three is great. I could see this as potentially being irritating underfoot if wearing for extended periods, but thats just my guess. The rubber on one of the hooks has already started to peel off, could be from the heat. I love the extra charms too. Ill wear one of the high end brand name headsets, but I find this brand works best.