The"Keep Calm" phenomenon has taken the Internet and everyone on it by storm, so we figured it was only appropriate to make a St. Patrick's Day version of this classic shirt. And while it may not be very British, we hope that you take the shirt's advice to heart and party all night long!

The “Keep Calm” phenomenon has taken the Internet and everyone on it by storm, so we figured it was only appropriate to make a St. Patrick’s Day version of this classic shirt. And while it may not be very British, we hope that you take the shirt's advice to heart and party all night long!

• Designed and printed with pride in Ann Arbor, Michigan
• Professionally printed with commercial inks
• Men's, Women's, and Youth version available for most products
• If on fence about sizing, go up a size