Supertech is Alpinestars innovative line of Pro Level motocross clothing, designed for superior performance in off-road riding. With an engineered design for an athletic 'race' fit, a chassis composed of advanced stretch and durable Ripstop stretch and an ultra-lightweight construction, the Supertech Pants feature a number of technologies proven in SX and MXGP racing, including stretch Kevlar , to offer optimal levels of flexibility, freedom of movement, ventilation, durability and comfort. 1. Race fit and performance design, engineered for aggressive riding and professional levels of movement, flexibility and comfort. 2. Main frame largely made up of innovative rip-stop stretch fabric.The composition of the textile fibers has been specifically developed by Alpinestars to optimize mechanical properties, including abrasion resistance, elasticity and durability. 3. SXM self-locking magnetic buckle for quick and secure closure. 4. Highly breathable stretchnet zones throughout the lower leg f