This NWT Carter's Checkered Short Overalls Tee Outfit 2PC Set is perfect for baby boys aged 3 months. The outfit includes a checkered pattern with short sleeves and features a pair of shorts. Made from a comfortable polyester and cotton blend, this outfit is great for casual occasions during the summer and spring seasons. Easy to care for with machine washable instructions, this overall style outfit from a trusted brand like Carter's is a stylish and practical choice for little boys.