I don't have any cycling garments that affect my knees. But I've never liked the idea of compression tights on the bike, and now that I think about it, that's exactly why.
My Adidas "unisex" knee warmers are fine on my knees, but too tight in the calf grippers, and they cut off my circulation and give me leg cramps.
Any larger and they wouldn't stay on my thighs. Two weeks ago on CFC I borrowed some PI knee warmers from a (male) friend of a friend, and they fit perfectly. Should've looked at the size.
Speed comes from what you put behind you. - Judi Ketteler