The t-shirt I bought for my husband, but hey, What's his is mine and what's mine is mine. He wears a size medium. So I'm wearing a size medium. (On a side note... if someone you know likes to drink old fashions this is a great holiday gift. It's never to early to shop shopping for the holidays. All else is true to size. LTKSeasonal LTKfindsunder100 LTKfindsunder50