Personalized My Favorite People Call Me Mom, Mother Day T-Shirt. Treat yourself or surprise a mom you know with this meaningful and trendy addition to her wardrobe. Embrace the joy of motherhood with style! 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.