The side holes in Converse shoes. If you've ever owned a pair of Converse, you've probably noticed these two little holes on the side of the shoes. It turns out, these two are designed to allow you to get creative with lacing techniques, like zig-zagging them across the whole width of our feet. The second use of the holes is to provide much-needed ventilation. Another theory is that if the shoes don’t fit properly, you can tighten them up by using these two holes.