That is what makes it something you can always count on, like a good pair of jeans should be. Jack Jones Super Stretch 50% jeans are extremely flexible, and provides the comfort you need in your active life. The fiber mix makes the denim stretch up to 50%, while keeping their shape. With these Super Stretch 50% jeans you will experience incredible comfort in a real pair of jeans. Product Type : Slim fit jeans. Closing : Button fly fastening. Waist : Low rise. Fit : Slim fit with a low rise, slim knee and tight cuffs.