Dainease 3X knee guard
Wouldn't do downhill without guards. ONly complaint is the sizing is not efficient. A medium and large are the EXACT same size padding, the only difference is the circumference of the velcro straps which really aren't that important compared to the amount of surface area I want guarded by the pads themselves. Medium will do if you are an average size woman with larger calves because the large straps ensures the pads slide down the leg instead of staying in place during the ride. Not so good when you fall and the pads have slidden down no longer covering their intended spots!