SmartShock? elbow protectors are impact tested and certified to the highest level of impact protection (Level 2 Type A), Fully ventilated plastic outer shell adds abrasion resistance, Rubberized, ventilated outer skin print for durability, Strategically placed perimeter embossed foam padding with ventilation, Tacky silicone elastic webbing to prevent slippage, Adjustable hook and loop upper and forearm closures, Pre-curved chassis for attack position, Internal elastic flex joint maintains chassis compression during pedaling, Forearm cinch for added security