VIDEO : Bill O'Reilly, Vanity Sizing Is Real--And So Is Weight Gain

Former Fox News host Bill O'Reilly thinks he has found a culprit for his shrinking shirts--but it's not weight gain.
According to Business Insider, O'Reilly says manufacturers are stealthily using less fabric to save money.
Actually, clothes have gotten bigger over time. Vanity sizing has also crept from women's clothing to men's clothing.
A size 30 pair of pants can actually measure 31, 32, or even 33 inches around, depending on where you're buying it.
It's unlikely clothes would shrink as obesity continues to rise.
So, unfortunately for O'Reilly, it's unlikely that his shirts are getting smaller ? he's just gotten bigger.