any knee brace is designed to provide support to the joint so it should fit a little snugly. however if it's too tight it can cut off circulation to the leg which of course is not good. some warning signs that may indicate your knee brace is too tight: reddening of the lower leg (compare the color to the opposite leg) purple toes or toenail beds swelling of the lower leg or foot numbness or tingling of the lower leg or foot pins-and-needles feeling in the lower limb if you're experiencing any of those things you need to loosen your knee brace slightly. hope this helps! stay safe.
what are possible dangers when wearing a knee brace--if it is a little tight?