I'm recovering from a knee replacement, and was very hesitant to resume my workout without some sort of compression around my knee. All the other things I tried would not stay up, too little compression, etc. These are perfect for my needs and just the right resistance. My knee feels very supported, and I'm no longer afraid to exercise. Just ordered the 40 resistance for when I feel the need to really challenge myself. Also got the educator discount, which really helped. (Got it on BOTH pairs!) Thank you