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| Size | Height | Weight |
|---|---|---|
| Newborn | 0 to 21 in. | 0 to 10 lbs. |
| Find Ralph Lauren Newborn on Amazon | ||
| 3 Months | 21 to 24 in. | 10 to 14 lbs. |
| Find Ralph Lauren 3 Months on Amazon | ||
| 6 Months | 24.5 to 27 in. | 14.5 to 18.5 lbs. |
| Find Ralph Lauren 6 Months on Amazon | ||
| 9 Months | 27.5 to 29 in. | 19 to 22 lbs. |
| Find Ralph Lauren 9 Months on Amazon | ||
| 12 Months | 29.5 to 31 in. | 22.5 to 25 lbs. |
| Find Ralph Lauren 12 Months on Amazon | ||
| 18 Months | 31.5 to 33 in. | 25.5 to 27.5 lbs. |
| Find Ralph Lauren 18 Months on Amazon | ||
| 24 Months | 33.5 to 35.5 in. | 28 to 30 lbs. |
| Find Ralph Lauren 24 Months on Amazon | ||
| 2/2T | 34.5 to 36.5 in. | 29 to 31 lbs. |
| Find Ralph Lauren 2/2T on Amazon | ||
| 3/3T | 37 to 39.5 in. | 32 to 35 lbs. |
| Find Ralph Lauren 3/3T on Amazon | ||
| 4/4T | 40 to 42.5 in. | 36 to 40 lbs. |
| Find Ralph Lauren 4/4T on Amazon | ||
| 5 | 43 to 45.5 in. | 40 to 44 lbs. |
| Find Ralph Lauren 5 on Amazon | ||
| 6 | 46 to 48.5 in. | 45 to 49 lbs. |
| Find Ralph Lauren 6 on Amazon | ||
| 7 | 49 to 51.5 in. | 49 to 55 lbs. |
| Find Ralph Lauren 7 on Amazon | ||