It depends. Do you work out in the gym a lot? Is your upper body muscular? Do you race?
I am 5'6 and weigh 164. I am a size 31. Ya, if I didn't workout, I would be overweight. I am still classified as overweight by the BMI scale. I want a balance of muscle and speed. I don't want to be a bean pole like pro racers are. I definitely want muscle volume in my upper body!