My leg is a bit small so finding a well fitted knee brace can be difficult. I have tried different ones. The ones I hate the most are the bulky ones because when I walk, the other leg rubs against the brace and causes a lot of pain. The Mueller Adjustable Hinged Knee Brace is also a little bulky when you compare it to thin braces, but compared to other ones I have used, it's not bad at all, plus it is quite soft, so even if it rubbed against my other leg, it does not bother me at all. I was having some knee pain past couple of days, so this is a perfect time to try it out. At first, I thought it was a bit loose, I tightened it to the max and it held up well as I was walking. I wore shorts, so the brace was in direct contact with my other leg and it did not hurt at all nor did it bother me. It felt like it was stiff enough to support my leg, but not so stiff that I had trouble walking. I do have to say, I do have a bit of feeling of awkwardness walking in a brace because as it is giving support, it is also preventing me from big movements like bending too much. I guess you can also say that it is doing it's job. Regardless, the most important point is that I do feel some pain relief while wearing this knee brace as I was walking. The weather where I live is a little cold at this time, so the heat from caused by the brace is just fine, but I will guess that during the summer months, it might cause some sweating.