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ROMPERINBOX Unisex Baby Onsies Solid Baby Bodysuit Romper Blank for 0-24 Months Boys Girls

  • Based on 932 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Sep 20 – Sep 21
Order within 8 hours and 5 minutes
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Color: Long Sleeve Black


Size: 18-24 Months


Description

Love for Baby & Cozy for Life. Who Are We? RomperinBox is the new brand of American children's clothing from 2016. Since 2016, we've served more and more homes worldwide. We offer a wide range of trendy/functional/high quality baby friendly products-Bodysuit, Hoodie, Cardigan, Romper, Onsies, Dress, Outfits, Swimsuit, Holiday Party Clothes, All-Seasons Clothing etc. These plain simple bodysuit haven't any graphics on the front, the solid colors go well with any of other clothes and it's easy to match. They are simple colors that flatter any baby, and neutral enough to go under any other outfit piece. You can choose assorted colors. There are 6 size options, from newborn to 2 year old: 0-3 Months, 3-6 Months, 6-9 Months, 9-12 Months, 12-18 Months,18-24 Months The envelope neck easy for dressing. Long sleeve keep baby cooler in the summer. Pure cotton not irritate baby's delicate skin, very skin-friendly. 3 snap closures conveniently positioned for easy diaper changes.

Department ‏ : ‎ baby-girls


Date First Available ‏ : ‎ September 13, 2023


Product Warranty: For warranty information about this product, please click here


Best Sellers Rank: #16,002 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #27 in Baby Girls' Bodysuits


#27 in Baby Girls' Bodysuits:


Customer Reviews: 4.6 4.6 out of 5 stars (932)


Brand Name: ROMPERINBOX


Age Range Description: Baby


Unit Count: 1 Count


Import Designation: Imported


Number of Items: 1


Garment Size Country: United States


Style Number: RL-black-18-1


Color: Long Sleeve Black


Neck Style: Round Neck


Strap Type: Stretchable


Closure Type: Snap


Pattern: Solid


Back Style: T Back


Sleeve Type: Long Sleeve


Material: Cotton


Product Care Instructions: Machine Wash


Apparel Fabric Weight Class: Medium Weight


Apparel Fabric Stretch: Medium Stretch


Size: 18-24 Months


Recommended Uses For Product: Slimming


Fit Type: fitted


Sleeve Length Description: Long Sleeve


Fit to Size Sentiment: Positive


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 20 – Sep 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Zip Pay in 4
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  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • A+ Quality
Color: Long Sleeve Black Size: 6-9 Months
Great quality! Soft, thick! Arrived on time!
Reviewed in the United States on January 11, 2026 by Karen

  • Good quality - good fit
Color: Long Sleeve Black Size: 9-12 Months
Good quality. Good fit. Color washes out a bit after washing. Seems durable for multiple wears.
Reviewed in the United States on November 15, 2025 by Maria

  • True to size
Color: Long Sleeve Black Size: 18-24 Months
I got the black it’s nice and was true to size. It’s soft.
Reviewed in the United States on November 26, 2025 by Silvia Gomez

  • True to size
Color: Long Sleeve Black Size: 6-9 Months
This onesie isn’t too thick, but not too thin. True to size. Washes well. My baby girl wore this with her Halloween costume and it kept her warm. It’s also very soft cotton, but not like fleece.
Reviewed in the United States on November 8, 2025 by Chelsea Cordle

  • Worth it
Color: Long Sleeve Black Size: 0-3 Months
Good quality for price, comfy fit and material for my 2 month old.
Reviewed in the United States on February 29, 2024 by Taylor

  • Good quality. True to size
Color: Long Sleeve Black Size: 9-12 Months
Perfect. Nice quality. True to size. Fast shipping.
Reviewed in the United States on May 2, 2025 by Amazon Customer

  • Nice
Color: Long Sleeve Black Size: 12-18 Months
Nice
Reviewed in the United States on March 9, 2026 by Hawa yakubu

  • Soft and well made
Color: Long Sleeve Black Size: 6-9 Months
The material is soft and is well made and should fit my great granddaughter perfect by Christmas.
Reviewed in the United States on October 9, 2025 by sandra charbeneau

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