Wednesday, June 24, 2020

Easy Any Size Baby Bubble Romper

 I'm so excited to share this latest project with you - I've been busy working on it for a couple of weeks and am so happy it's finally ready: the Any Size Baby Bubble Romper!

 This sweet & comfy outfit is just what the little ones need for keeping cool now that the heat's turned up outside.

 I've been trying to save money this summer by sewing up clothes for my kids from my long neglected fabric stash. When there's 5 of them the $ really adds up when buying clothes - especially for the baby & toddler who grow crazy fast!  So I came up with this simple sew romper for my baby girl that's got a flexible fit, easy to get on & off, and uses little fabric, so it's very economical.  

The easy sew design is ideal with favorite cotton prints.  I used woven for my first few, but cotton knits work great too.  After the custom sized pattern is made, they are so quick to crank out too - I've already made 4 and am addicted because they look so cute!

I even made this one patriotic for the Fourth of July with the red, white & blue
 Count Your Blessings Cream fabric from my shop.

The gathered top and elasticized straps give the perfect fit so I know they'll last the entire summer:

The bubble body shape is breezy for baby (and perfectly roomy for cloth diapers like mine wears), while the elasticized leg holes add a cute ruffled edge:

And of course it's got the all important snap crotch so diaper changes are still easy too:

My sweetie loves wearing them as much as I've loved making them.  For a mom who's short on sewing time, it's a total win:)

Use my free downloadable 3-6 month size PDF pattern or follow my step-by-step instructions to draft whatever size desired.

- 1/2yd - 1yd* cotton fabric (woven or knit)
- 3/4yd of 1/4in wide elastic
- 1/2yd of decorative elastic 3/8in wide or narrower (or ribbon)
- Scraps of stabilizer (or more fabric) 
- Notions: iron, disappearing marker, pins, rotary cutter/shears, ruler, measuring tape, safety pin, matching thread, pencil
- Large paper to draft pattern (tissue, wrapping, parchment or the like)
* 1/2 yd of fabric will make up to size 6 months.

If you're good with the 3-6 month size, use my PDF pattern DOWNLOAD HERE.  

Set printer to actual size (100%), then print, cut out and tape pieces together per the instructions.

Otherwise, start by making a handy paper pattern.

You'll need the following measurements (use measuring tape):

- Chest
- Length from shoulder to crotch
- Thigh diameter
- Shoulder width (measure from one across to the other)

To determine the top bodice width, divide the chest in this in half + 2 inches.  
My daughter was 16in so the top bodice width was 10in.

To determine the full romper length + 4 inches to the shoulder to crotch length.   
My daughter was 14in so the full romper length was 18in.

Take paper and measure out a rectangle that is the bodice width and romper height.  This is paper part A.  You'll need a second piece that is at least 10 inches wider than the bodice width for extending the sides to make the bubble shape.  That is paper part B.

Take paper part A: from each corner, measure inward 2 1/2 inches and down 3 inches and make a "J" shape on either side.  If doing a much smaller or larger size, (like an preemie infant or larger toddler) add or subtract a 1/2 inch, or more, to both these measurements.  This style is pretty forgiving since it gets gathered at the end, so it's ok if it's not exact.

Place paper part A over the top of paper part B, centering it so there's 5 inches on either side.  With a ruler at the top corner of the underarm area of part A, draw a diagonal line outward that is 5 inches wider at the bottom on either side.  This will create the necessary bubble shape.

Now make a line down the center of the paper and measure a rectangle at the bottom that is 5 inches wide by 2 inches high.  This will be the snap area.  From the outer diagonal lines, measure up 5 inches and create a curved line from the top of the snap rectangle to that outer 5 inch measurement on either side.  This will create the leg hole areas.  

Tape the papers together and then cut along the drawn lines.

If using my PDF pattern (which is a half width), fold the fabric widthwise so the selvages meet in the middle and there is a fold on either side and cut each piece, front & back, on the fold and open.  

If using a self-drafted version, where the pattern is full width, have fabric folded in half, with selvages on one side.  Cut out two pieces from the fabric (front & back).

With right sides facing, stitch the side seams together with a 3/8in seam allowance.

Encase the underarm area of each side in double fold bias tape, pin and then stitch together close to the open edge.

Create the neck casing by folding the top raw edge over to the wrong side of the fabric by 1/4in and pressing.

Fold again, down one inch this time and press.  Stitch down near fold.

To make the stretchy elastic straps I did, determine the shoulder strap length by measuring the distance from the center of one shoulder to another and double that + 1 inch.  For my 3-6 month size daughter, it was inches 13 long so I cut 14in from the decorative elastic I had.  If you're not sure or don't have decorative elastic, a piece of ribbon could be used instead, just make sure it's long enough to tie in a small bow.

With a safety pin, snake the elastic/ribbon through the front and back casings.  

Overlap the elastic ends about an inch and zig zag stitch together.  Pull the elastic so the stitched ends get hidden inside a casing and the gathering is evenly done on both sides.

For the snap up bottom, fold the end 1/4 in over towards the wrong side of the fabric and press. 

Now fold that bit up 1/2in toward the right side of the fabric and press.  Stitch down 1/2 inch inward on either side.  Clip the raw corners down and fold right side out.  

This creates a layered little pocket to put the interfacing or extra layer of fabric in that will reinforce it for the snaps.  This is key to keeping the fabric from wearing holes around the snaps since it'll get pulled on a lot with frequent opening.

Fold the raw edge of the leg area under 1/8 in, press and repeat to make the leg hem.  Stitch down.

Cut two pieces of 1/4in wide elastic that are 1 inch wider than baby's thigh measurement (Mine were 9inches for my chunky legged 4.5 month old).  Mark the center of each piece and match that to the side seam of each leg area. 

Starting at one end of a leg hole, stretch the elastic next to the hem and stitch down with a wide zig-zag.  This will create the cute gathering.  Repeat on remaining leg hole.

Set snaps along the crotch ends (make sure one snap side faces down and the other faces up).

Admire your cute new bubble romper and dress that baby for summer!


  1. You have five more children than I do, so I have no need for your fab infant projects, but I have to commend you on your ability to produce these free tutorials while juggling motherhood. You're amazing and I'm sure your efforts are appreciated by many — even if most of them stay silent.

    1. Thank you so much for the wonderful comment Rochelle. It really means a lot. Since commenting isn't done as much these days as it was pre-social media obsession, it's often hard to know if anyone is actually reading. Then I get a few sweet messages like yours and a few emails saying they've used my tutorial to make something and it makes it so worthwhile. Stay tuned for a few non-kid projects next month too!

  2. These are absolutely adorable and they look so comfy to be in on a hot summer day. Love the material with all the little faces on it.

    1. They really are - which has come in handy with our current 90+ heat wave! I love that fabric too - it was a long saved remnant from when I made a baby outfit for my now 10yr old other daughter:)

  3. Such a fabulous and practical romper Cheryl... and your bubba is adorable too. Great tutorial and easy to follow instructions.
    Thank you for sharing your any size baby bubble romper at Create, Bake, Grow & Gather this week. I'm delighted to be featuring it at the party this week and pinning too.

    1. Thanks so much Kerryanne! It's very appreciated.

  4. How cute are those? Thanks so much for linking up with me at my #UnlimitedMonthlyLinkParty 14, open July 1 to 26. All party entries shared if social media buttons installed.

    1. Thank you Dee and for hosting such a great party.

  5. Your bubble romper is adorable, Cheryl. If this was around when my kids were little, I'd have made lots for Summer wear - so practical. Showcased today...

    1. Thank you so much Pam - the showcase is wonderful too!!

  6. This is the cutest ever! Thanks for sharing this post and the free pattern with us on the Homestead Blog Hop!


  7. Oh my goodness, she is such a cutie patootie! I'm trying to admire the romper but that gorgeous little face is very distracting! This will be one of the features at Handmade Monday later today :-)

  8. Just fabulous!!! Looks sew easy!!!! The photos are a great help. I am a mum of 5 as well, 4 I have given birth to and one fostered but mine!... all grown up now. I am also a grandma, and have a baby grandson. Do you have a pattern for a baby boy please? as I would love to make him one.

    1. Thank you - it's a great feeling seeing so many like it as much as I do! Yes, I have my Runaround Boy's Romper which can easily be modified to fit 6-12mos up to 3T:

  9. Your baby girl is suuuper cute the fabrics are beautiful and thank yyou for this marvelous and easy pattern. I have searched and searched and though there are many many free patterns out there you are the first I found who TAUGHT how to draft your own! I always prefer to learn the drafting and make the the pattern rather than a download because if you learn how you can always make it for any size baby. Not to mention that a "free pattern is offset by printing and paper charges at the copy shop. This way as my granddaughter grows I can continue to apply the learning and draft accordingly. I am deeply grateful,


Getting your comments brightens my day. I'd love if you left one:)


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