You've definitely got a hoodie stashed somewhere in your wardrobe. You're likely wearing one now. They keep you warm, they provide layers, they protect you from the elements, but do you know that the purpose and benefits of a hoodie go well beyond the obvious? Sure, they're a valuable part of your autumn clothing, but did you also ever step back to realize the societal perks of putting a hoodie on? These are 10 Reasons a Hoodie is the Greatest Piece of Clothing of All Time.