Print out our watch sizer to find your size if you don't have a measuring tool, HERE! PLEASE MEASURE YOUR WRIST FOR AN ACCURATE SIZE. (measurements taken around the smallest part of the wrist, above wrist bone) X-Small: fits wrists 5-5.4 inches around and is 4.5 inches long Small: fits wrists 5.5 inches - 6 inches around and is 5 inches long Medium: fits wrists 6.1 inches - 6.6 inches around and is 5.5 inches long Large: fits wrists 6.7-7.2 inches around and is 6 inches long X-Large: fits wrists 7.2-7.8 inches around and is 6.5 inches long (this band is extra stretchy so it could probably stretch up to a 8.3 inch wrist) This watch band is made out of our best selling Olive Hexagon Scrunchie material and is only compatible for an Apple Watch. This band is made out of a hexagon textured, sweat-wicking material with a good amount of stretch. This watch band has an elastic band in it and is stretchy but should fit tight against your wrist like a scrunchie would! The connector piece is a black metal that seamlessly matches with any color Apple Watch. Shop the matching scrunchie HERE *ANDi is not responsible or liable for any damages or loss caused to an Apple watch while wearing an ANDi watch band*