The official Yeezy Supply page explicitly tells you to order a half size up. Does that mean that's the canon sizing and not just a thing everyone decided to do? : r/yeezys
A first look at Kanye West's Yeezy Supply website
Where You Should BUY YEEZYS? (Adidas vs Yeezy Supply) Shipping Time/Experience - YouTube
Adidas Yeezy Supply 350 V2s / Chuckskicks
adidas + KANYE WEST announce the YEEZY BOOST 350 V2 Citrin