Personalized I Love My Grumpy Cute Sunshine T-Shirt. Whether you want to surprise your grandpa, grandma, or any grandparent, this design is sure to bring a smile to their face. It's an ideal gift for birthdays or any occasion to show appreciation for the unique relationships between grandparents and grandkids. 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.