I'm not a young buck anymore, so I was looking for knee pads that gave me better support for my aching knees. The other knee pads I found fit too loose or didn't give enough support - what I found were cushions that would slide down and constantly need adjustment. Basically, what I wanted was a knee brace with a pad on it. The Hydra pads have substantial neoprene construction that fits tight, so it gives good support. Exactly what I wanted!
If I were to suggest any change or an option, it would be a cut-out for the patella. I don't know if it's possible with this design, but just a thought.