The Pro Ultra liners are built for maximum training and elite performance, crafted from super-premium, lightweight fabric that’s highly breathable, supportive, and silky smooth. Designed with The Original 3D Pouch, it keeps everything separated and supported for next-level comfort during intense movement. A fold-over secure pocket provides reliable storage that stays in place while you move. The fabric is a breathable, moisture-wicking polyester blend mesh featuring Ionic+® anti-odour technology that does not wash out.