Supertech is Alpinestars innovative Motocross apparel line, designed for superior dirt riding performance. Featuring an innovative performance fit design, a chassis consisting of advanced stretch material and an ultra-lightweight construction with a simple, clean design and an aggressive look, the Supertech Pants incorporate a host of race-proven technologies for comfort and performance-winning pedigree in Supercross and Motocross. • Rider engineered fit and performance shape designed for aggressive riding and professional levels of movement, flexibility and comfort. • Main chassis extensively constructed from advanced stretch rip-stop fabric. The textile fiber composition is specifically developed by Alpinestars for high level mechanical properties including strength, elasticity and abrasion durability. • Liner-less design and flat seam interior for optimized rider comfort. • 600 Denier reinforcements on seat area provide seam strength, durability and critical coverage. • Dual-layer 600 Denier knee panel for durability and freedom of movement. • Stretch mesh inserts at back of knee add flexibility and air flow. • Open mesh inserts positioned to flow cooling air into the hip area and exit warm air at the back. • 3D leather knee panels backed with 600 Denier designed to work with knee braces for riding feel, grip and control, plus heat resistance and durability. • High heat resistance stretch aramidic fiber reinforced panel surrounds the knee, extending heat resistance, comfort and durability. • Double overlap waist Velcro closure system and high strength ratchet system is secure and finely adjustable for a personalized fit. • Leg cuff features stretch mesh insert for easy on and off. • Silicon print on inner waist to keep the pants in position. • Sublimated fade-resistant graphics. • No lining for effortless on and put off with knee braces or knee guards. • Overlock seams construction ensure a “slick” inner surface for optimized comfort.