Supertech is Alpinestars innovative Pro Level Motocross apparel line, designed for superior dirt riding performance. With an engineered design for an athletic ‘race’ fit, a chassis consisting of advanced stretch and durable stretch Ripstop and an ultra-lightweight construction, the Supertech Pants feature a host of SX and MXGP race-proven technologies, including stretch Kevlar, to deliver optimum levels of flexibility, freedom of movement, ventilation, durability and comfort. 1. Race-engineered fit and performance shape designed for aggressive riding and professional levels of movement, flexibility and comfort. 2. Main chassis constructed extensively from an advanced stretch rip-stop fabric. The textile fiber composition is specifically developed by Alpinestars for optimized mechanical properties including strength, elasticity and abrasion durability. 3. Secure SXM auto-lock magnetic buckle for a quick and secure closure. 4. Highly breathable stretchnet zones on the full lower leg for ultra-light weight, while also delivering superior airflow and stretchability. 5. Liner-less design for optimized rider comfort and effortless on and off with knee braces or knee guards. 6. Strategically positioned perforations for additional airflow and optimum ventilation