A baby boy's summer dress in bright blue is a delightful outfit perfect for sunny days. Picture a soft, lightweight fabric, perhaps cotton or linen, in a vibrant shade of blue reminiscent of clear skies. The dress may have short sleeves or be sleeveless to keep your little one cool and comfortable. It could feature cute details like buttons or a playful pattern. Pair it with sandals or little sneakers for an adorable summer look that's both stylish and practical.