Baby Boy T-Shirts: 9-12 Months

Keep your little one comfortable and stylish with our collection of baby boy t-shirts for 9-12 months. Made from soft, breathable organic Pima cotton, these tees are gentle on delicate skin while allowing full freedom of movement. Perfect for playtime, outings, or layering, they provide the ideal mix of comfort and practicality.

Looking for more styles? Explore our selection of shirts for boy babies to find a variety of options. If your baby is growing fast, check out our 12 to 18 month boys collection to stay prepared for the next stage.

Designed for all-day comfort, these baby boy t-shirts for 9-12 months feature a soft, stretchable fit and easy closures for quick dressing. Whether worn alone or layered with other pieces, they are a must-have for your little one’s wardrobe.

Shop now to find the perfect baby boy shirt for 9-12 month son.