What's your height and weight? I'm 6'5" 225lbs and have a Kings #24 Reggie Theus powder blue I bought in 1987 - when I weighed 20 lbs less. It's a 52" chest which is the only tag on it. I would say it's XL. Purchased a white/home version of same jersey last season which is 2XL. Both fit, so as far as I'm concerned XL or 2XL are perfect for me.