You see all those stars wearing their arm sleeves thinking they wear them just for style. I'll beg to differ. I use one when I play now. I think it really helps. There is a different feeling when you extend you arm. A "smooth shot" feeling. Does any one out there use one or have used one? I would like to know what you think about them, yes I would. =)
But those jumper sleeves for your legs... what are they gonna do make you jump higher. NO! So don't waste your money people.
Here is all the research I did. =)

He uses one. He averages 27 PPG!

He doesn't. He averages 8 PPG.
Well A.I. is better anyways. My research sucks.