Vacuum metal plated,high impact plastic shells for increased scratch and impact resistance Dual pivot hinge more closely follows the natural movement of the knee, allowing for a greater degree of comfort with unmatched coverage Asymmetrical design independently fits the left and the right leg for umparalleled comfort Multiple large vents in plastic shells and foam for maximum ventilation Soft wicking mesh material for maximum comfort and ventilation against the skin Specifically designed shin piece prevents guard from slipping down leg One-adjust quick release strap system allows for quick and easy application and removal Removable liner allows for easy cleaning Specifications: Material: High impact and high density ABS Size: Standard (For adult) Color: Black&Red Net weight:520g Package contents: 2x Knee Pads