Brother to our 5.5 factory racing pants, the GPX 4.5 is unbeaten in its price class. Promising a pre-curved performance fit – straight out of the box – these pants now also have a lighter, more breathable construction. They are made from Ripstop stretch with X-Flow mesh panels, offering durable & ventilated protection with 3D molded, fully floating knee cap reinforcements & two-point knee ventilation. The seat area is made from 1200D which makes it very durable, they have multi-row stitching, & the dual layer Amara inner leg is soft yet tough & grips well. The new, shorter micro adjuster waist belt with 180 ? silicone grip & YKK highest quality zippers ensure a solid fit. Features Pre-curved performance fit New lighter & breathable construction Ripstop stretch & X-Flow mesh panels 3D molded, fully floating knee cap reinforcement 1200D nylon, heavy duty seat material & Amara inner leg YKK zipper & multi-row safety stitching Two-point knee ventilation Waist with micro adjuster & 180 ? silicone grip Anti-odor Moisture Cool mesh lining