Stpatricks day comes but once a year march 17th to be a precise stpatrick is the primary patron saint of ireland and every year he is celebrated with a global day of drinking so grab a guinness don one of our t shirts and everyone of us can be irish for the dayltbr gtltbr gtt shirt design reads i shamrock boozeltbr gtltbr gtour crew neck short sleeved mens t shirts are 100 premium cotton in a soft pre shrunk jersey knit our womens t shirts are lighter weight