80% Polyester, 20% Spandex HIGH-QUALITY ELASTIC: Unlike other elastic waist extenders that quickly stretch out of shape, ours are made using strong elastic that expands by an extra 50% without ever weakening. EASILY ADJUSTABLE: Designed with 3 slots, you can instantly expand your pants’ waist between ½” and 2 1/2”, our extenders also come with two different button sizes to fit a wide variety of pants. NICE AND DISCREET: No worrying about the elastic waistband extenders showing through. Our pant button extender set is also made using non-irritating fabric for all-day comfort. COMFORT IN A SNAP: No need to be sewn on. The elastic waist expanders go over existing pant buttons and work with khakis and jeans to give you extra comfort in seconds. GREAT VALUE: Get the best bang for your buck with our 6-pack that gives you enough elastic button expanders to give all your old slacks a new lease on life.