For future little travelers and adventurers, meet our transportation-themed footie to spark and inspire your baby boy's imagination. This baby boy onesie features a double zipper for easy diaper changes and non-slip foot soles for size 12-18 and up. Made of 100% Pima cotton Breathable and hypoallergenic. Unlike bamboo, our Pima cotton fabric does not pill and it is more durable. Machine wash cold, tumble dry Two-way zipper Snap Closure to keep zipper secure and sizes NB and 0-3 comes with mittens.