Personalized My Oma and Opa Love Me T-Shirt. . Whether it's for grandpa, grandma, fathers day, mothers day, birthday, or any other occasion celebrating family, these products are perfect for showing appreciation to grandparents. The design is also ideal for those with German heritage, as it includes references to Oma, Opa, and Germany. 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.