Features Minimal seam chassis design for maximum stretch performance and comfort Durable 4-way stretch nylon In-Motion chassis construction allows unrestricted body mobility Taped interior sewn seams for extra durability with less skin irritation Laser cut perforation vents for increased airflow Thermoplastic Polyurethane (TPU) knee protection overlays Sticky silicone printed inner waist keeps jersey in place Zipper-less waist opening for maximum comfort with reduced weight Precision-fit, ratchet waist closure system Durable full grain leather inner knee grip panels Aramid fiber backing on the knee