Black Premium Fleece Lined Activewear Leggings are a soft, thicker, stretchy and compressive 79% polyester 21% spandex blend with a comfortable 5" yoga waist. Not only do these feature convenient side Cell Phone Pockets but they also have a Hidden Pocket in the Waistband. These are indeed completely fleece-lined on the inside so they are thicker and warmer than your everyday leggings.