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| US | Age | Weight (pounds) | Height (inches) | EU | UK |
|---|---|---|---|---|---|
| Preemie | 0m | less than 6 lbs | up to 22" | 56 | 0-1m |
| Newborn | 0-3m | up to 10 lbs | up to 22" | 56 | 0-1m |
| 0-3m | 0-3m | up to 10 lbs | up to 22" | 62 | 3m |
| 3-6m | 3-6m | 11-15 lbs | 23-26" | 68 | 6m |
| 6-12m | 6-12m | 15-22 lbs | 26-30" | 74 | 9m |
| 12-18m | 12-18m | 22-25 lbs | 30-32" | 80 | 12m |
| 18-24m | 18-24m | 25-30 lbs | 32-35" | 86 | 18m |
| 2T | 2 years | 29-31 lbs | 33-35" | 92 | 23-24m |
| 3T | 3 years | 31-33 lbs | 35-37" | 98 | 2A |
| 4 | 4 years | 34-39 lbs | 39-42" | 104 | 3A |
| 5 | 5 years | 40-43 lbs | 42-45" | 110 | 4A |
| 6 | 6 years | 44-49 lbs | 45-47" | 116 | 5A |
| 7 | 7 years | 55-60 lbs | 49-51" | 122 | 6A |
| 8 | 8 years | 61-66 lbs | 51-53" | 128 | 7A |
| 10 | 9 years - 10 years | 66-74 lbs | 53-55" | 134 | 8A |
| 12 | 11 years - 12 years | 74-86 lbs | 55-58" | 140 | 10A |
| 14 | 13 years - 14 years | 85-96 lbs | 58-60" | 152 | 12A |
| 16 | 15 years - 16 years | 96-110 lbs | 60-62.5" | 160 | 14A |
| Age | 3-6m |
| Weight (pounds) | 11-15 lbs |
| Height (inches) | 23-26" |
| Age | 6-12m |
| Weight (pounds) | 15-22 lbs |
| Height (inches) | 26-30" |
| Age | 6-12m |
| Weight (pounds) | 15-22 lbs |
| Height (inches) | 26-30" |
| Age | 12-18m |
| Weight (pounds) | 22-25 lbs |
| Height (inches) | 30-32" |
| Age | 18-24m |
| Weight (pounds) | 25-30 lbs |
| Height (inches) | 32-35" |
| Age | 18-24m |
| Weight (pounds) | 25-30 lbs |
| Height (inches) | 32-35" |
Brand: Rock Me!
Material: 100% Combed Cotton
Origin: United States
Two fashion-savvy moms, Anna Muzzy and Nancy Gutierrez, started Rock Me! after realizing the classic romper needed an upgrade. The dynamic duo swore off snaps, Velcro, and applique animals. The result? Modernized rompers with a 21st-century aesthetic. Here, we have a whole slew of one-pieces that look like little outfits, including our favorite: the Carolyn faux-wrap dress with leggings underneath.