Personalized Irish St Patricks Day Letter G Monogram T-Shirt. Irish Letter A T-Shirt - White alphabet gifts. Sure an this stylish St Paddy's Day letter G is just right for wearin' on St Patrick's Day, if your name begins with G. 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.