The world of custom sneakers is one 22-year-old Jayden Rankin has lived in since the 8th grade. But, during his time at the University of Louisville, he decided to take his passion to the next level.

I wore them nonstop for two weeks in Italy. Courtesy of Ali Faccenda / InStyle I’m a self-proclaimed shoe snob. I own well over 20 pairs of sneakers, and while I know nobody needs that many ...