The NWT Old Navy Colorblock Tee Knit Pants 2PC Outfit Set in baby boy size 12 months is a stylish and comfortable outfit perfect for casual occasions in the winter, fall, or spring. Made of 100% cotton, this set includes a multicolor colorblock t-shirt with long sleeves and matching knit pants. The Old Navy brand ensures quality and style for little boys, making this outfit set a great choice for a little one's wardrobe.