Coal The Waffle Beanie Turquoise Coal are great at what they do & what they do is make great quality hats, great quality hats that are made to a great quality that will keep your head warm no matter what the weather. Their Waffle hat is made from 100% acrylic & constructed using a crocheted waffle knit pattern. The hat features a classic yarn pom on the top for decoration & an embroidered herringbone Coal branding tag to finish it off. A great hat for those days when you can see your own breath. Yarn bobble/pom Crochet waffle knit 100% acrylic Embroidered logo tab Description by Adam.