VIEW Onesie Size Chart

For sizes NEWBORN, 0-3M and 3-6M we provide Gerber Brand Organic Onesies® (short sleeves only). Shortsleeve 6M-18M will be Carters Brand Bodysuits & ALL Longsleeve will be Carters Brand Bodysuits.

Note: Carters run larger than Gerber, please keep this in mind when ordering the same size in both short & long sleeve.
PLEASE shop by weight and size NOT by the label. COLOR Bodysuits use different tags ex, 6-9M size MAY be labeled as 6-12M & 12M as 12-18M, but should fit according to the size chart.

Size Weight Length
Newborn (Gerber)
up to 6 lbs
16-19 in.
0-3M (Gerber)
7-9 lbs
20-22 in.
3-6M (Gerber)
10-15 lbs
22-24 in.
12M (6-12M)
17-21 lbs
25-29 in.
18M (12-18M)
21-25 lbs
29-31 in.

Adventure Begins Onesie® Brand, Grandparent Announcement


  • Personalization

    Please provide the required information (according to the image) for your item, example Family Name, and or Month/Year Please Note: Not ALL items allow for personalization, please check the product image 1st to see which options are available.

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    • $

    Please check the design, if it requires a FAMILY NAME or, NAME, please add here and IGNORE the due date area

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VIEW Onesie Size Chart