The term 'kind of pants' can refer to four different types of pants: pajama, capri, SMARTY, and STRETCH. Pajama pants are usually made of a soft material such as cotton or flannel and are designed to be worn in the home for comfort and relaxation. Capri pants are cropped trousers that end just below the knee and are often made of lightweight materials such as linen or cotton. SMARTY pants are tailored trousers with a slim fit and are usually made of wool or synthetic fabrics. STRETCH pants are made of a flexible material such as spandex or lycra and are designed to provide a snug fit.