Personalized Happy Positive Vibes Happy Little Smiler T-Shirt. Wear it to inspire smiles and uplift those around you. Whether you're gifting it to a friend or treating yourself, this Happy Little Smiler apparel is a delightful reminder to embrace positivity every day. 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.