These baby rompers are made from 100% cotton, offering soft and breathable comfort for newborns aged 0 to 12 months. Available in sets of 1, 2, or 3 pieces, they feature long sleeves, an O-neck collar, and covered button closures for easy dressing. Designed to fit true to size, this unisex sleepwear is perfect for spring and provides cozy, cute style for both girls and boys. Made with safe materials.