Personalized Twins 1st St Patricks Day Irish Men's V-Neck T-Shirt. Twins first St Paddys Day Men's V-Neck T-Shirt - Black outfit with Irish rainbow shamrocks and pot of gold. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem