Hello Michael!
Sorry to hear that the fit is a bit off! We'd be happy to help you exchange it for a large. You can start the exchange process online at https://maceoo.com/pages/return-policy or email us at feelgood@maceoo.com - whichever is easiest for you!
We'll guide you through the process and get you into a comfortable, great-fitting shirt in no time. Your comfort is our priority, and we want to ensure you enjoy your shirt to the fullest!