Fasthouse Elrod Pants - HyperSonic. Four-way stretch Cordura® offers unrestricted movement throughout pant. Perforated 450D front panel and back yoke panel for additional ventilation. Solid 600D back thigh and saddle panel for superior abrasion resistance. Ultralight mesh vented back calf and ankle paneling improves boot airflow. Mini mesh front thigh and inner back yoke inserts. Interior silicone gripper. Double and triple-stitched seams reinforced with high-strength nylon yarns. Large high heat / abrasion-resistant full-grain leather inner knee paneling. Durable yet pliable TPR embellishments on thighs, knees and back yoke. Silky soft 3/4 length inner lining for comfort and knee brace optimization. Front zipper closure with adjusting ratchet strap and side waistband adjustors. Removable / interchangeable front thigh patch.