Leopard Print & Pink Heart Baby Onesie White T-shirt. 100% Cotton short sleeve white one-piece for infants 6 months to 24 months. This baby onesie is designed for maximum comfort. Made with a 1x1 baby rib knit to ensure a smooth touch and good stretch, and durability that will withstand several washings. It features a reinforced 3 snap closure and a cleverly constructed neckline designed for easy on-and-off.