Personalized Retro Groovy Sunshine Smiley Nana T-Shirt. Whether you're dressing up for a special occasion or keeping it casual, this collection adds a splash of joy to any outfit. Get ready to turn heads and share smiles! 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.