I Can't Keep Calm It's My Birthday! - Girl Design - Infant Toddler Shirt Made in the USA. Please do not support sellers who steal designs. This product should only be sold by Wallsparks. Other sellers make poor quality copies of this as illegal counterfeits.  Copyright Wallsparks. This copyright-protected design was created by Wallsparks, the ONLY Shop authorized to sell this product. 18 Month Infant Tee (Body Width 10 3/4 inches, Body Length 13 1/2 inches), 2T (Body Width 12 inches, Body Length 14 inches), 3T (Body Width 13 inches, Body Length 15 inches), 4T (Body Width 14 inches, Body Length 16 inches), 5/6T (Body Width 15 inches, Body Length 18.5 inches). Measurements armpit to armpit Printed with water-based, eco-friendly inks. Prints are super soft and permanently dyed in the fabric while you can't feel the print on the fabric keeping the fabric super soft and comfortable. Each print is not a transfer which means it doesn't crack or peel or wash out. Our prints will continue to feel and look great even after many washes for many years. Infant and Toddler Shirts RUN SMALL for some kids. Please check the size chart before purchasing. Ribbed crew neck, Shoulder-to-shoulder taping, Double-needle stitched sleeves and bottom hem