FLANNEL SET: Get cozy in our lightweight, soft, relaxed-fit cotton flannel pants and stretch jersey crew-neck t-shirt for ultimate comfort. Offered in adult sizing. FOOTED SLEEP & PLAY: Cut from midweight cotton micro-rib knit that is naturally breathable, stretchy and soft. Ribbed neckline and cuffs with an ankle-to-chin one-way zipper and snap-over tab under chin. Offered in baby sizing (preemie to 9 months). STYLE: Designed for full family matching, enjoy the ultimate cozy night in with our sleepwear sets that have something for everyone. SNUG FIT: For children's safety, sleepwear should be either flame resistant or tight-fitting. This item is tight-fitting and not flame resistant. OFFICIAL LICENSED PRODUCT: Amazon Essentials offers one-of-a-kind products featuring your favorite characters to add wonder to your wardrobe! All products are officially licensed and designed in-house.