Make sure that your socks are breathable! Look for a high nylon or cotton percentage, or look for mesh inserts, and your socks will definitely let the air in and the moisture out. If your socks are not breathable, you could potentially end up with a lot of problems! For starters, your socks may cause sweat to build-up. This, in turn, makes bacteria thrive, and they then cause bad odors! The fungus can also start to develop, and Athlete’s foot is something no one wants to tackle. Also, wet socks create more friction, and the more friction you have inside your shoes, the likelier it is that blisters will form. So make sure that your socks can breathe!