Lightweight, stretch panels on the life and structure of pre-bent leg, pants Alpinestars Youth Racer offer younger drivers comfort and high performance in the riding position. Ideal for all specialty off-road. Technical detail: The rear stretch panels provide comfort and flexibility for life and lower back. Durable structure politessuto / nylon. PU coating for more sturdiness and durability. Pre-curved legs with 3D knee structure and hidden expansion panel to accommodate patrons. Mesh lining light and breezy, with elastic inserts for improved fit. Heavy nylon reinforcements on the seat and inner thigh area offer superior abrasion resistance. Padded detachable polischiuma hips for added comfort Injected rubber logos and 3D printed. Front zipper secured with self-locking buckle for adjustment in life. Internal key pocket.