RDX MMA Shorts Kick Boxing Fighting Training Martial Arts Grappling Gym Workout. RDX Shorts are designed to keep comfort and functionality as a priority so that you can focus on your performance during training or in the octagon. Breathable and light, it provides you with the ease to maneuver, execute complex moves and exercise flawless technique. These shorts are a must have for every level of mixed martial arts practitioner. Performance polyester with 2% spandex ensures durability and comfort. Drawstring waistband for an easy fit. 3ply polyester-reinforced stitching Dedicated pocket for gum shield. Form retaining breathable design with anti-microbial treatment. SIZE CHART