Baby Box Baby boys' Long Sleeve Infant Clothing Set T-shirt + pants size 12 - 18 months Machine wash cold, tumble dry low. Do not bleach Size : 18M 24M, Suit baby from 0-24 month old baby cotton material, soft cotton Tee + pants, cartoon pattern on tee Qtty: 2pcs clothing set (1 long sleeve T-shirt +1 long pants) Neckband designed for easy on-and-off. For fire safety, these pajamas should fit snugly