PennaNomen
It's snowing, and Neal doesn't have weather-appropriate shoes.
When you're an FBI agent chasing a most-wanted thief, you learn everything you can in order to capture him. Even his shoe size. So once you catch him, you should use that information, right?
In White Collar season 1, Neal joked that when Peter was chasing him, he learned everything about Neal, including his shoe size. White Collar fanfic written for an AO3 exchange