We'd rather not have to stop post-crash (or crash at all) to patch up our knees, and so agree the minds behind 7iDP's Flex Knee Guards, which provide flexible but highly rugged protection for enduro riders and bike-park junkies alike. The X-Profile pad isn't a hard shell, but it offers up nearly as much protection while being way more comfortable for pedaling, and the neoprene sleeve locks everything down without cramping your climbing style. Dual hook-and-loop straps make sure the Flex doesn't slip and slide down your legs even if you get sweaty, because knee pads at your ankles aren't really knee pads at all.