I couldn't find a conversion chart that went as high as size 63, but I'm guessing that these would be roughly a size 29 if you were to find them in a U.S. store. Having been a basketball manager for a well-known Division I men's team when I was in school, I've seen some huge shoes, but these take the cake.
Viktor Drachev/AFP - Getty Images
Shoe designer of Marko factory Tatyana Manshykh shows a size 62 (63 in European size) pair of men's shoes in the factory in Vitebsk, some 300 kilometers east from Minsk on April 19, 2008. The tallest world living man Ukrainian Leonid Stadnyk, 259 cm, wears such a size.