The Pro-Rugged 2 Elbow Guard features SmartFlex pads that stay flexible as you ride and harden on impact to protect your elbow. Riding down rocky, tree filled trails is easier knowing you are protected from sharp items you may accidentally come in contact with. Designed for both safety and comfort, the Pro-Rugged 2 is made with double-knit compression fabric, a ventilated mesh, and a top and bottom gripper to keep the pad in place during your ride.