They’re built from a high-performance, low-drag 66% polyester/34% cotton cavalry-stretch Twill. They feature double thick fabric at the seat, inner-knee, and calf for added chafe-protection. Clearly, 5.11’s Motorcycle Breeches are engineered to stand up to the punishing duties of mounted patrol. Add a self-adjusting tunnel waistband, double-articulated knees for enhanced responsiveness, and these pants are good to ride. Side-zip vents and on-seam pockets will have you cool and ready for duty. UPF 50. Imported.