I have been preparing a lot to get ready for this week, and I am so excited to share it with you! Do you remember the original tshirt romper? I made it 3.5 years ago! I’ve reworked the pattern and redid the pictures to give you the best tutorial possible. I hope it’s easier to use and easier to understand! And I’ve also come up with a bunch of easy variations to customize your romper that I’ll share with you all week! 

DIY T-Shirt Romper FREE PATTERN {Updated!}

A women’s or men’s crew neck tshirt – I’ve used both with success. Women’s tees usually have spandex and are a little more stretchy, but men’s tshirts work great too.
Sewing supplies*
Ballpoint sewing machine needle*
buttons or snaps – I like these KAM Snaps*
FREE PATTERN in size 6-9 mos


1. Cut the side seams of your tee to open it up. Fold the front in half along the center front.
2. Lay the pattern with the fold on the fold and the neckline lining up with the neckline. 
*The neckline might be a slightly different shape, but line it up the best you can.
3. Do the same with the back to cut out a back piece.
DIY T-Shirt Romper FREE PATTERN {Updated!}

4. Cut out one gusset. Make sure the stretch is going the right way.
5. Lay the sleeves on top of each other. Line up the bottom of the sleeve pattern with the hem of the sleeves. Cut out two sleeves.
6. Cut out three facings. I layered my layers together so I only had to cut it out once.

DIY T-Shirt Romper FREE PATTERN {Updated!}

Here are the pieces you need: one front, one back, two sleeves, one gusset, and three facings. 

DIY T-Shirt Romper FREE PATTERN {Updated!}
1. Overlap the back neckline over the front neckline by 2.5″. Pin and sew with a zigzag stitch along the edge.
2. Line up the sleeves with right sides together with the armscye. Pin and sew with a zigzag stitch with 1/4″ seam allowance. Finish the edges with a zigzag or serger.
DIY T-Shirt Romper FREE PATTERN {Updated!}

3. With right sides together line up the sleeves and edges of the romper with 1/4″ seam allowance. Zigzag or serge the edges.

DIY T-Shirt Romper FREE PATTERN {Updated!}
4. Take one of the facings. Line up the inside curve with the front inseam. With right sides together sew with 1/4″ seam allowance.
5. Finish the outer curve of the front inseam.
6. Flip the facing around into the inside of the romper. Sew with a straight stitch .75″ from the edge to tack the facing to the inside.
DIY T-Shirt Romper FREE PATTERN {Updated!}

7. With right sides together line up the gusset with the back inseam curve. The gusset will fit right into the extra seam allowance on the back. The curve of the gusset is opposite to the curve of the inseam so it’s a little tricky to sew. Sew with a zigzag at 1/4″ seam allowance.

DIY T-Shirt Romper FREE PATTERN {Updated!}

8. Take the last two facings. With right sides together sew around the outer curve with a zigzag stitch with a 1/4″ seam allowance.
9. Turn right side out.

DIY T-Shirt Romper FREE PATTERN {Updated!}

10. With right sides together line up the inside curve of the facing with the back inseam going around the gusset. Sew with a zigzag stitch at 1/4″ seam allowance.
11. Serge or zigzag the edges.

DIY T-Shirt Romper FREE PATTERN {Updated!}

12. Optional: Sew the seam allowance of the facing up towards the body of the romper with a straight stitch.

DIY T-Shirt Romper FREE PATTERN {Updated!}

13. Fold up the legs 1/2″ (including the front and back facings) and sew with a zigzag.
14. Add snaps or buttons to the faced inseams.

DIY T-Shirt Romper FREE PATTERN {Updated!}

That’s it! And adorable romper from your tshirt!

DIY T-Shirt Romper FREE PATTERN {Updated!}

Buy the tshirt romper sewing kit!

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Author: Heather Handmade

I'm a seamstress and mother. I sew, blog, thrift, upcycle, design fabric, and teach sewing classes. I'm also a self-proclaimed fabric fondler.

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10 thoughts on “T-Shirt Romper FREE PATTERN {Updated!}

  1. This is a wonderful idea and it looks absolutely fantastic – but I can't seem to find the download link for the pattern?

    Posted on September 25, 2017 at 1:07 pm
  2. When printing, do we print actual size, or scale to fit? There's no 1" test square to make sure it's printing out the intended size.
    These are really, really cute and I can't wait to make some!

    Posted on May 24, 2017 at 11:03 pm
  3. Hi, I'm trying to print the 2T pattern out but it's coming out huge…? Any advice on with percentage I should be printing it at? Also have you updated the 2T pattern or only the smaller size?

    Posted on May 19, 2017 at 2:03 pm
  4. For some reason, the pattern is no longer showing up! 🙁

    Posted on April 27, 2017 at 1:54 am
  5. Is there a way to make the romper without snaps so I could just pull it on and off with ease??

    Posted on February 22, 2017 at 1:17 am
  6. Thank you for designing and sharing this. Its a great patter and so generous of you to give it to others. I'll share a link when I sew one up :-0

    Posted on October 28, 2016 at 8:09 pm
  7. These are so fun! Do you have a tutorial (or at least a pattern, if it follows the same basic instructions) for the long sleeved one that you have in the picture?

    Posted on September 19, 2016 at 9:21 pm
  8. I love this idea! Are you able to give a pattern for bigger sizes like 12-24months too? Or ideas how to modify it for bigger bubs? Thanks heaps!

    Posted on August 23, 2016 at 9:40 am
    1. I only have a 6 mos size and a 2t size at the moment. Here's a link to the larger size!

      Posted on August 23, 2016 at 3:24 pm
  9. Thank you. The age range on this is perfect for some cute nephews I'll have next summer! Now to find the perfect t-shirts.

    Posted on August 22, 2016 at 1:23 pm