Personalized Irish Mom T-Shirt. Pretty Irish Mom T-Shirt - White has colors of Ireland logo and Irish Mom slogan for St. Patrick's Day or Mother's Day. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.