If you get right size, they are excellent
It's real important to get the right size for these to work for you. If you get to big they will slip down your knee, to tight they will be uncomfortable. There size chart showed that I needed XXLarge, but I downsized & went with the XLarge instead, and was surprised they fit perfect for me, because I don't have real big legs, I wear XLarge shirts & 38 waist size. I can walk a lot more distance with these knee sleeves with very little slippage with hardly no pain, before i bought these, I could only walk about 1/2 block, with these sleeves on i can walk almost all day with minimal pain. I have bone on bone pain on left knee, and arthritis in right knee. They are so comfortable, I even wear these while sleeping sometimes. I walked all day at casino, and did not have pain like before without sleeve, and very little slippage. I recommend these if you have bone on bone pain in knee.