XXX is our extra overstable control driver. XXX is sincerely a disc for the "big guns" and not for children. As already said it´s overstable, it´sa headwind driver, it´sa hurricane season driver, it´sa disc you will love to have when you need to bomb over something , it´sa disc you can rely on in any condition, it will do its job every day! XXX is made in our well received OPTO line plastic. Do you have the power to shine with an X-rated disc? If so, good for you!