My 1st International trip, Plane baby onesie®, International baby onesie®

"My 1st International trip" white baby onesie. Measurements for Gerber onesies. Newborn fits baby's between 5-8 lbs and 17-21" height. 0-3 Months fits baby's between 8-12 lbs and 21-24"" height. 3-6 Months fits baby's between 12-16 lbs and 24-26" height. 6-9 Months fits baby's between 16-20 lbs and 26-28" height. 12 Months fits baby's between 20-24 lbs and 28-30" height. 18 Months fits baby's between 24-28 lbs and 30-32" height. 24 Months fits baby's between 28-32 lbs and 32-34" height. Gerber onesies do run on the small side. If you are between two sizes, we highly recommend sizing up.