Color: Numbers A Onesie for Each Month (headline) JumpOff Jo’s Seize the Moment Onesies are numbered 1-12 to mark each month of your baby’s first year. This gift set includes four standard sizes: 0-3 months, 3-6 months, 6-9 months, and 9-12 months, with three onesies per size. • Made of 100% cotton • Nickel-free snaps with reinforced panels • Expandable necklines FOUR SIZES FOR THE FIRST YEAR – JumpOff Jo’s 12-pack of newborn and baby onesies includes 3 onesies for each age group: 0-3 months, 3-6 months, 6-9 months, and 9-12 months. NUMBERED 1-12 – Celebrate each new month with these adorable milestone onesies. Each bodysuit is numbered so you can chronicle your baby’s first year in photos.