* Advanced fit and function: Rider-engineered fit and performance shape designed for aggressive, expert and professional level riding. * Main chassis extensively constructed from an advanced stretch rip-stop fabric for durability. * Iconic ‘Babel’ knee flexion construction features the unique and proven open venting design and allows for a slimmer fit while still being compatible with all Alpinestars knee braces. The pre-shaped, reinforced and padded 3D knee construction is also equipped with a hidden stretch spandex expansion gusset for a customized fit. | Article: Alpinestars Techstar Quadro Motocross Pants, black-yellow, Size 28 | Article: Alpinestars Techstar Quadro Motocross Pants, black-yellow, Size 28, black-yellow, Size 28