Baby Boy Shirts: 12-18 Months

Keep your little one comfortable and stylish with our collection of baby boy shirts for 12-18 months. Made from soft, breathable organic Pima cotton, these shirts provide a gentle feel against delicate skin while offering a flexible fit for active toddlers. Whether for playtime, outings, or layering, they are a must-have in any growing baby’s wardrobe.

If your baby is in between sizes, you can size down to 9-12 months for a snugger fit. Planning ahead? Our toddler boys collection has more options as your little one continues to grow.

Designed with both comfort and practicality in mind, these baby boy shirts for 12-18 months feature a soft stretch, breathable fabric, and easy snap closures for quick dressing. Whether worn on their own or layered, they provide all-day comfort for every occasion.

Shop now to find the best baby boy shirts for 12-18 months.