A hoodie (in some cases it is also spelt hoody and alternatively known as a hooded sweatshirt) is a sweatshirt with a hood. Hoodies often include a muff sewn onto the lower front, and (usually) a drawstring to adjust the hood opening. A sweatshirt is fashioned out of a thick, usually cotton jersey material. Sweatshirts are also almost exclusively casual attire and hence not as dressy as some sweaters. Sweatshirts may or may not have a hood. A sweatshirt with a hood is now usually referred to as a hoodie, although more formal media still use the term “hooded sweatshirt”.