Personalized Coolest Mom Long Sleeve T-Shirt. Coolest Mom text with a row of ice cubes is a funny gift design for mothers at birthdays, Mother's Day and the winter holidays. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL