Thomas Little Boys Short Sleeve Square Collar Grid Pure Cotton Shirt 1-6Y Size : Height: 18-24M: 36.2inch; 2-3Y: 38.6inch; 3-4Y: 40.9inch; 4-5Y: 43.3inch; 5-6Y: 45.7inch; 6-7Y: 49.3inch; 7-8Y: 53.2inch; 8-9Y: 57.1inch. Products use natural cotton, silk, animal hair comfortable fabric, all of the printing and dye use active environmental protection dye to ensure every clothing can give children natural healthy care. Fabrics and accessories using natural, environmentally friendly, skin and body characteristics for children, the use of cotton, natural colored cotton and other natural fabrics. With natural color children's stocky outline, reflecting the children's naive of infinite space and infinite vitality. Dynamic design elements, bright colors, vivid, jumping, and strive to show freshness and vitality.