Alpinestars Racer Semi Pants Black/Multi Color 40 The Racer Pants offer optimized levels of comfort and performance in the riding position, thanks to their lightweight chassis, lower waist stretch panels and pre-curved leg design. Developed and tested on some of the toughest terrains around the globe, the sport fit Racer Pants are ideal for many forms of off-road riding. Advanced, highly-resistant 600D poly-fabric main chassis construction is PU coated for strength with a technical yarn for enhanced durability. Micro rip-stop stretch fabric panels on crotch, knees and rear waist for enhanced rider comfort. 3D pattern, pre-curved ergonomic construction for additional rider comfort and superior freedom of movement. Large rear stretch panel insert provides increased comfort and flexibility to the waist and lower back. Extensive lightweight and ventilated mesh with stretch panel inserts for an optimized fit. Mesh lining for superior comfort. Leather reinforced inner-leg panels for enhanced heat resistance, grip and comfort. Ratchet closure with waist adjustment straps for a secure, personalized fit. Gripper internal waist elastic band helps keep garment in position. Convenient interior hip pocket for key/coin storage.