At the end of the day, more than likely your knee sleeves won't increase your squat by themselves, and if they do, it will be by a marginal amount. Yet, if you want extra support, which can create additional confidence, then knee sleeves could very well increase the squat.
Considering this, how much do knee wraps add squat?
One can expect to squat at least 30 pounds more with wrapped knees, sometimes as much as 100 pounds more, depending on the lifter. The mechanics of it are similar in function to a squat suit - fabric wants to force you into a particular position and so they basically slingshot you back up out of the hole.
Subsequently, question is, how much does belt add to squat?
For deadlifts, wearing a belt increases IAP by about 15%, and for squats, it increases IAP by about 30%–40% more than lifting heavy weights beltless. This increase in IAP has two major effects, one good and one bad.
Are knee support good for squats?
Before a big squat, most powerlifters sheath their knees in knee wraps. A recent study in The Journal of Strength and Conditioning Research found that squatting in knee wraps leads to a nearly 20 percent decline in quad muscle activation. That's because the wraps essentially “take over,” doing the job of your quads.
Are knee wraps or sleeves better?
Knee Sleeves to the Rescue The main benefit knee sleeves offer lifters if protection from future injuries and damage. However, knee sleeves are not designed to protect your old injuries. If you have a nagging injury you're trying to lift around, a knee brace is a much better option.