Personalized Oma's Girl Heart T-Shirt. Oma's Girl granddaughter T-Shirt - Navy Blue has pink lettering and lots of love hearts on this gift for a girl. Cute idea for Valentine'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.