LOL Baby! Happy Mother's Day Dad Says You're Welcome Baby Bodysuit & Kids T-Shirts Approximate sizing: Newborn (up to 7 pounds), 6 Months (7-17 pounds), 12 Months (17-25 pounds), 18 Months (25-30 pounds) Premium quality fine jersey ringspun cotton. Super soft and smooth. Excellent quality. Reinforced three-snap closure for easy diaper changes