Personalized 29 Forever Birthday Chick T-Shirt. A yellow chick holding the number 29 with the text forever is a funny birthday gift design for friends and family that are young at heart. Everyone loves our Custom T-Shirts! 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.