Rebelz Shorts Gold Standard comes with an elastic waist and drawstring. These shorts are made of a soft, lightweight and flexible fabric, 100% polyester. Stretch fabric in the crotch for optimal flexibility. Sublimation printing technology is used to ensure that the print won’t crack or come off. Please read size guide and washing instructions below. If you have any questions, please contact customer service . Also read the Rebelz Ultimate No-Gi Guide for advice and tips.