If you want to, you can boil your crocs. To reduce their size, you must boil them in a certain way. The most efficient method is to boil your shrunken Crocs for a few minutes. Then, once you're able to handle the cold of them outside the water, pull them out and wear Crocs for a time. As a result, your Crocs should reshape to your feet and feel brand new. You should also wear socks for better results.