Baby Petti Romper

I fell in love with the very first Petti Romper I saw! So I told hubby that I was going to make baby girl one… and he thought, “Okay, I guess she’ll do that eventually…” only he was surprised to find that I made one that very day! 😛

All that you need for this is:
-A white baby onesie one size bigger than your baby wears
– White elastic band
-Lots of white lace (or something like a table cloth or curtains made out of lace… which is what I used)

Remember: Use a onesie one size bigger than what your baby wears, because with all the layers of lace sewn on, the fabric isn’t as stretchy anymore. Plus, you need it longer because you will cut off the sleeve part.  Cut one side of the onesie along the hem so that it will look similar to the picture below. Then cut off the sleeve part in a straight line. You need just one “rectangle” so you can sew the strips of lace in line straight line. You will sew it together again after you are done with the lace strips.

Sew it all together! Sew the elastic on & sew the sides together. 
It’s DONE! 🙂
Now go and take 354 pictures of your baby girl in her new  petti romper! (no, I didn’t take 354 pictures… welllllll…) 🙂


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  1. Rachel

    July 6th, 2012 at 6:51 pm

    very cute!

  2. Anonymous

    July 10th, 2012 at 3:33 pm

    That Is so adorable!! I think this just may be the first thing I make for my little one 🙂 love the pics!

  3. Hannah Hathaway

    August 4th, 2012 at 6:12 pm


  4. Anonymous

    August 11th, 2012 at 11:15 pm

    She's adorable! Great Tutorial! <3

  5. Anonymous

    October 16th, 2012 at 3:19 pm

    How much lace did you end up using?

  6. Hannah Hathaway

    October 16th, 2012 at 3:47 pm

    I actually cut up some lacy fabric into strips… but an estimate based on the amount of rows I did (which totally depends on how scrunchy you want yours to be), I would say 4 yards would be safe. You could probably even do it under that amount.

    15 rows at 10" wide each= 4 yds

    Hope that helps!

  7. Hannah Hathaway

    October 16th, 2012 at 3:51 pm

    ps) it also depends on how wide your lace is. Get more than you think you will need.

    <3 Hannah

  8. Anonymous

    March 1st, 2014 at 12:22 am

    Thank you so much. I have been looking for this easy to do lace ruffle romper. Going to make as soon as I get some onesies…. 🙂

  9. shammara

    October 18th, 2012 at 2:41 am

    I LOVE this tutorial beautiful pics! Did use a sewing machine? Is this a two piece romper?

  10. Hannah Hathaway

    October 18th, 2012 at 12:09 pm

    Thank you! 🙂

    I did use a sewing machine, but you don't have to have one to make one!

    It isn't a two piece (I know from the top picture it may seem like it, but I just cut off the top from the bottom so I could sew the strips of lace on easier onto a rectangle and then sewed them together again) But I can see it being a two piece too (a ruffle top with a ruffled diaper cover!)

    If you have any other questions, just let me know!

    Love, Hannah

  11. Amanda @ Ninth Street Notions

    October 31st, 2012 at 5:04 pm

    This is amazingly adorable. I am definitely sewing one of these for the little girl I'm expecting.

  12. Hannah Hathaway

    October 31st, 2012 at 5:04 pm

    So glad you like it! Send pictures once you are done if you can!

    <3 Hannah

  13. Mara

    October 31st, 2012 at 5:13 pm

    I pinned an outfit like this about a month ago, it is so great that you made this tutorial, thank you so much, now I just have to go out and make myself another baby, just kidding. I will try to take your instructions to make one for my 2 1/2 year old daughter for next summer. Your baby girl is adorable.

  14. Hannah Hathaway

    October 31st, 2012 at 5:19 pm

    Haha! Yes, it would be adorable on any little girl!

    <3 Hannah

  15. Cassandra

    November 3rd, 2012 at 11:10 am

    This is so adorable! I think I need to have another baby girl next time round so that I can make super cute stuff like this! <3
    Thanks for sharing (I know how much effort goes into tutorials 😉 )

    Cass x

  16. Hannah Hathaway

    November 3rd, 2012 at 12:32 pm

    Thanks! I am glad you like it.

    Yes, it is a lot of effort, but worth it! 🙂

    <3 Hannah

  17. Anonymous

    January 11th, 2013 at 2:30 pm

    Did you cut the bottom off and then sew it back on after you put the lace on?

  18. Hannah Hathaway

    January 11th, 2013 at 11:40 pm

    Yes! I also added a layer or two of lace to the bottom though too. It just made it easier for me to sew because mine was didn't have snaps. But you don't have to cut the bottom off if it's a snaps one.

    Hope that helps!

    <3 Hannah

  19. Anonymous

    March 9th, 2013 at 6:04 pm

    did you use the elastic band for the top? and also what kind of elastic did you use? this is so cute!! Been searching for an easy way to make one. thanks for sharing

  20. Hannah Hathaway

    March 10th, 2013 at 1:55 am

    Yes, I just used a generic white elastic for the top so it would hold up. Just don't make it too tight. 🙂

    Glad you like it!

    <3 Hannah

  21. Jaya

    March 13th, 2013 at 8:57 am

    awww thats adorable.. and your little princess is so pretty!
    loved the pics at the end.
    thank you for the tutorial!

  22. Hannah Hathaway

    March 18th, 2013 at 4:22 pm

    You're very welcome! <3

  23. Leigha

    May 11th, 2013 at 1:32 am

    Hi Hannah! Super cute! Did you create a tunnel for the elastic, or did you just sew it to the rectangle?

  24. Leigha

    May 11th, 2013 at 1:34 am

    And… I know you said you did 10" long rows, but how wide were they? 10"x?

  25. Hannah Hathaway

    May 11th, 2013 at 1:36 pm

    Sewing a tunnel around the lace is a great idea!

    As far as the lace strips, they were about 10" long and maybe like 1.5" wide. But how long and wide you want the lace to be depends on how ruffly you want the lace to be. I would personally play around with it and come up with your own estimate according to your supplies.

    Hope that helps! 🙂

    <3 Hannah

  26. Emily Persefield

    June 21st, 2013 at 7:07 pm

    Super ADORABLE little girl, first off, and I absolutely LOVE those rompers! #1 reason I want a little girl myself. Lucky me though I have 1 niece who's 4 and 1 on the way! I love your use whats on hand approach, and your tutorial is amazing! Have you thought about using elastic thread on the lace to help with the "not so stretchy anymore"? Just something I thought might make a small difference, if any.


  27. Hannah Hathaway

    June 21st, 2013 at 7:30 pm

    Great idea Emily! I am sure that that would solve the "stretchy" issue!

    <3 Hannah

  28. Emily Persefield

    June 21st, 2013 at 9:04 pm

    I have actually started on a romper already! Just need to cut the lace and sew it all together!

    Thank you again for this tutorial!

  29. Demetria Gentry

    June 28th, 2013 at 3:33 am

    Hi I was wondering about the step where you actually create the ruffles in the lace its a little hard to see because of white on white I'm having such a hard time creating the ruffles could u please let me know how you did it thank you so kuch…your tutorials are awesome.

  30. Hannah Hathaway

    June 28th, 2013 at 3:55 am

    Here's a step by step on how I used the same stitch/ruffling concept on a headband.

    Just do a long, loose stitch and then gently pull the thread to bunch it together.

    Hope that helps!

    <3 Hannah

  31. Anonymous

    June 26th, 2014 at 11:07 pm

    You actually need 5 1/2 yards,
    Im a 14 year old starting a baby clothing line
    Nice idea though hope I helped

  32. Tiny Bibiya

    January 26th, 2015 at 8:28 am

    Hi Hannah,

    Do you have a photo of the inside of the romper? Can i take a look?

  33. jude3944

    April 30th, 2015 at 8:50 pm

    I would have taken that many photos she is DARLING!!@!! Very cute I have a new great grand daughter coming in July I'll have to try this..Thank you

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