Hmmmmm Fox Launch Pro. Having had them since they first came out I’m on my second pair. The first are worn out really tatty and slip down easily after about yeah and a halfs wear. My current ones are starting to slip down. Last time I crashed the hard cup which sticks out further because of the worn/loose thigh cuff, caught on the ground, whipping both of them straight down my legs. I ended up with a deep graze on the side of my knee. TBH it’s hard to tell if it would have been any worse with no pads.
It’s the top thigh cuff that gives up as they wear, the bottom cuff holds well. As a result they bag down and stick out further, which if caught on the top of the hard cup just get yanked down your leg leaving your knees exposed.
They are comfortable for a relatively bulky pad, keep your knees warm in winter and are just about liveable in summer. There are far worse pads out-there but I wouldn’t recommend them as they have proved to be yet another piece of MTB kit that only lasts about a year before problems start. Obviously with light infrequent use you will get years out of them.