This drives me crazy on all kinds of tops (jackets, shirts, sweaters, etc).
I have a 40" chest and a 31" waist.
My chest puts me in a medium and my waist puts me in a small with just about every company. If I go medium the chest fits good but my waist is way to baggy. If I go small my chest is way too tight.
I wish companies would start making a more athletic tailored fit.