ThisWear 1st Birthday Gift in Dog Years Be 7 Infant T-Shirt 100% Cotton A funny birthday gift to celebrate their birthday with. 5.5 oz, 100% cotton jersey. Ribbed crew neck. Taped shoulder-to-shoulder. Double-needle hem sleeves and bottom. CPSIA compliant. Sizing: 6 Months (10-16 lbs), 12 Months (17-20 lbs), and 18 Months (21-24 lbs). Full sizing details are in the product description below. This soft, smooth-touch Infant Tee is decorated with a gentle and durable skin-safe ink. Our water soluable, eco-friendly ink is applied with new age direct-to-garment technology, and then cured with heat for a lasting, vivid design that is lead free. Authentic ThisWear  design printed with pride in the United States. This is not an unauthorized replica/counterfeit item. This is an original inspired design and does not infringe on any rights holders rights. Words used in the title/search terms are not intended to imply they are licensed by any rights holders.