Pro Series Performance Board Shorts are a limited edition line featuring some of the custom designs we produced for our sponsored fighters in major MMA events. Mark Bocek debuted the Pro Series Red shorts at UFC 91 versus Alvin Robinson. More recently, Antonio Silva wore the Pro Series Red Performance Board Shorts in his victory over Andrei Arlovski at Strikeforce: Heavy Artillery. Exceptionally lightweight yet durable sueded polyester microfiber fabric. The four-way stretch side panels are SUBLIMATED with matching graphics and hand-sewn to the most demanding specifications in our North American factory. Features: -Limited edition -Sublimated side panels -Interlined waistband for extra body and comfort -Patent-pending DoubleGripâ„¢ waistband with 1½â€� hook and loop for a secure fit -100% polyester sueded microfiber fabric, soft to the touch for extreme comfort -Bartacked in strategic points for added durability -High-density SuperStretchâ„¢ nylon-based expansion panels on the sides and crotch for maximum flexibility -Triple-needle flatfell (lap seam) stitching on centerback, inseam and side panels for long-lasting wear Clinch Gear features the world's #1 Performance Board Shorts. Painstakingly designed and tested by Clinch Gear owner and MMA star Dan Henderson, our loose-fit board shorts outperform all other MMA shorts, fight shorts, MMA fight shorts and grappling shorts in every critical category, including quality, technical performance, durability and fit. Clinch Gear Performance Board Shorts are the preferred training shorts of top UFC fighters, NCAA wrestling teams, high school wrestlers and tens of thousands of mixed martial arts enthusiasts and combat sports practitioners around the world who train regularly and demand best-in-class products and value.