Berets and BEANIES are two types of headwear that are popularly worn around the world. Berets are round, flat-topped HATS that are typically made of wool or felt and have a soft brim. BEANIES, also known as skullcaps, are close-fitting, knitted caps that are usually made of cotton or acrylic. Both berets and BEANIES can be used to accessorize an outfit or to keep warm in cold weather. The terms 'berets' and 'BEANIES' can also be used interchangeably with the words 'caps' and 'HATS'.