100% cotton. Machine washable. Signature embroidered Big Pony at the left chest. Ribbed Polo collar. Two-button placket. Short sleeves with ribbed armbands. Twill "3" patch at the right sleeve. Tennis tail.Imported. Size boys 5 fits a boy 43 to 45.5 inches in height and 40 to 44 pounds in weight. Size boys 6 fits a boy 46 to 48.5 inches in height and 45 to 49 pounds in weight. Size boys 7 fits a boy 49 to 51.5 inches in height and 49 to 55 pounds in weight. Color: sapphire blue with red pony.