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
Adidas Yeezy Boost 350 V2 Black Non Reflective FU9006 Men Size 9 | eBay
adidas + KANYE WEST announce the YEEZY BOOST 350 V2 Black
Does The Yeezy Boost 350 V2 Fit True To Size? | The Sole Supplier