Yeah yeezy slides definitely go a full size up- and if you're a half size normally, round up to the next full size up. So a 10.5 should get a 12. I wear a 12 normally and my foot was hanging off front and back so I sold them shyts and tripled my money. I keep entering for another 13 but haven't hit a pair since. They're narrow enough that they won't go flopping around. Pretty comfy too from my try on, but honestly the cloud foams and adilette shyts are better comfort-wise. I think the yeezy joints will stay on better though.