Six Six One's Evo Knee Guards deliver protection without weighing down your riding experience. The Evo line is made for riders who demand protection without the drawbacks.Flexible D30 padding is pre molded to fit the shape of any knee to deliver an outstanding fit. This freedom allows effortless pedaling and security. The padding on the Evo Knee Guards may be flexible, but it instantly hardens on impact to prevent injury. The pad is constructed form Cordura for breathability and comfort, with Kevlar panels for durability and abrasion resistance. Hook and loop closures ensure the Evo Knee guard is easy to put on and take off.