Alpinestars Racer Pants The Racer garments, which have been tested on some of the world's toughest terrain, are ideal for many forms of off-road riding thanks to sleeve and leg construction with pre-curved ergonomic patterns and new moisture-wicking and lightweight technical materials. The Racer pants with sporty cut offer optimized levels of comfort and performance while riding, thanks to its lightweight chassis, stretch panels and pre-curved leg design. The main shell is made from an advanced combination of stretch ripstop fabric and 600D polyester fabric with a reinforced coating for added stretch and durability. The main material is designed to ensure lightness, stretch and durability and offer superior airflow thanks to highly breathable stretch mesh zones. New ergonomic construction with sporty cut for more precise performance. Highly breathable stretch mesh zones on the back of the calves offer superior airflow, comfort, stretch and ultra-light weight. Goatskin inner knees for superior feel and durability, as well as superior heat resistance, grip and comfort. Ratchet closure with waist adjustment straps for a secure, customized fit. Inner silicone waistband to keep pants from sagging. Zipper closure for ease of use. Fade-resistant graphics.