Personalized Green Irish Shamrock Clover Men's V-Neck T-Shirt. Irish Green Shamrock Clover Men's V-Neck T-Shirt - Charcoal St. Patrick's Day holiday design. 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