Pre-Curved, Performance Fit Off-Road Pants. Brother to the 5.5 factory racing pants, the GPX 4.5 is unbeaten in its class. Promising a pre-curved performance fit – straight out of the box – these pants now also have a lighter, more breathable construction. With Ripstop four-way stretch and X-Flow mesh panels, these pants offer durable and ventilated protection with kneecap reinforcements and two-point knee ventilation. The seat area is made of 1800D material with multi-row reinforced stitching, making it very durable. The laminated Amara inner leg is soft yet tough grip - and even machine washable for your convenience! A micro adjuster waist belt and 180° silicone grip ensure a very solid fit. Features Pre-curved performance fit Light and breathable construction Ripstop stretch and X-Flow mesh panels 1800D heavy duty seat and Amara/1800D inner leg 3D molded, fully floating knee cap reinforcement Multi-row reinforced stitching Two-point knee ventilation Waist with micro adjuster and 180° silicone grip Anti-odor MoistureCool mesh lining