Polos are awesome because they're like T-shirts with collars. A crisp polo shirt will get you by at dinner or the club as well as it will when you're just kicking it. Polo shirts are classic wardrobe essentials, so you should double check your closet and make sure you've got one or two ready to rock. If not, or if you just need another one, check out our 5 Best Polo Shirts Under $100. And remember fellas, popped collars are for jerks.