If you want some added protection for your knees, and you don't want to give up your pedaling efficiency, the Fox Launch Enduro Knee Guards have your name written all over them. They're more substantial than a knee warmer, with an abrasion-resistant soft pad that shrugs off the vast majority of crashes. And with their unrestricted, pre-curved sleeve, you can pedal with minimal energy lost, unlike the burlier gravity-oriented options you may have tried before. The Launch Enduro pad starts out with a perforated neoprene sleeve, which helps to lock the pad in place for the duration of your ride. The back of the knee has a dense mesh panel, which helps to fight bunching, and frees up your legs when it's time to spin. The soft knee pad has an abrasion-resistant shell, which enhances durability. And the pre-curved shape means that you won't waste excess energy pedaling with restrictive pads. The Fox Launch Enduro Knee Guards are available in four sizes, from Small to X-Large, and in the color Black.