Bulky yarn is a type of yarn that is thicker than standard yarn, typically classified as a weight category 5. It is often used for projects that require warmth and coziness, such as blankets, scarves, and sweaters. The larger strands allow for quicker knitting or crocheting, making it a popular choice for beginners and those looking to complete projects in less time. This yarn is available in various fibers, including wool, acrylic, and cotton, each offering different textures and warmth levels. Bulky yarn can create a soft, plush finish, making it ideal for items that are meant to be cuddly or comfortable.