Free Baby Leggings Pattern

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Learn how to make baby leggings with a free sewing pattern. Use either knit fabric or an adult t-shirt for a quick baby sewing project.

Baby leggings were one of my favorite things for my babies to wear, and sewing leggings is one of my favorite things to make for babies. They are quick and easy to sew, and you can either use an adult t-shirt or knit fabric yardage.

This free baby legging pattern comes in four sizes so it can work through all the baby and toddler stages. Don’t miss the video to show you how to make it and free pattern at the end of the post!

free baby leggings pattern

What baby sizes are in the sewing pattern?

This baby leggings sewing pattern comes in sizes 3 mos, 6 mos, 12 mos, and 18 mos. If you want a bigger size you can use the Upcycled Leggings Pattern.

baby legging measurements

What fabric is the best to use for baby leggings?

For these leggings you can either cotton spandex jersey or an adult t-shirt with stretch. My favorite is a men’s t-shirt with 50% cotton and 50% polyester. You can reuse the hem of the t-shirt or create your own when using stretch fabric yardage.

adult t-shirt to upcycle

Should I prewash the item?

You should always prewash before cutting and sewing. You should always prewash to get rid of anything in the fabric that might irritate the skin of the baby or toddlers.

free baby leggings pattern

What is a PDF sewing pattern?

A PDF pattern is a sewing pattern designed on the computer and organized so that it can be printed on several letter or A4 size pieces of paper.

I love using PDF sewing patterns because if the pattern gets ruined or if my children or I changed sizes, I can always print it again. It’ll never be destroyed since I have a digital version!

How do you use a PDF sewing pattern?

Open the PDF on a computer and click print. When printing make sure that the scaling is set to 100% or no scaling so that the pattern prints at the correct size.

Once the pattern is printed it can be taped together to get the full size. Then the pattern can be cut for each pattern piece size or individual sizes can be traced so that the pattern can be used again and again. Learn how to use PDF sewing patterns.

free baby leggings pattern

Do you love to sew? Try one of these sewing projects:

free baby leggings pattern

How to Sew Baby Leggings


  • Free baby leggings pattern – get it at the end of the post
  • 1/2 yard of cotton spandex jersey OR men’s adult t-shirt
  • 1/2 yard of 1 inch elastic
  • Sewing tools
  • Sewing machine

Do you just want the pattern and tutorial as a PDF? Get the pattern and tutorial for $8. You won’t need to access the internet every time you want to make it. Or get the Pattern Bundle with ALL the PDF tutorials!

sew baby leggings pattern suppllies


Using a T-Shirt

Line up the bottom of the leggings with the bottom of a t-shirt. The edge of the pattern should line up with the folded edge of the fabric.

Cut two leg pieces with wrong sides facing so you get two opposites.

Using Fabric

Cut out two pants pieces mirrored. Make sure the stretch of the pattern lines up with the horizontal stretch of the fabric.

cut out two mirrored pieces

For fabric yardage leggings:

Fold the hem up 1/2 inch and pin in place. Sew 3/8 inch from the fold with either a zigzag stitch or twin needle.

hem fabric 1/2 inch and sew with zigzag

Place each side together with right sides together. Match up the center front and center back curves. Sew the center front crotch and center back crotch seam with a zigzag stitch or a serger.

zigzag center front and center back curves

Open the leggings so that the center front seam and center back seam are on top of each other. Line up the inseam of the front and back with right sides together. Sew the inseam with a zigzag stitch or a serger.

twist so center seams are on top of each other and zigzag inseam

Cut your elastic to the size you want for your child’s waist which is commonly 2 inches less then their waist measurement.

Overlap the two ends 1/2 inch and sew a rectangle and “X” to secure the ends.

Divide the elastic into four equal sections with four pins. Divide the waist into four equal sections with four pins.

Match up each pin on the elastic with a pin on the waist and pin the layers together. The edge of the elastic should line up with the raw edge of the fabric.

Zigzag through the center of the elastic all the way around to attach it to the waist. You will need to stretch the elastic to fit the fabric as you sew. It’s okay if the elastic shifts 1/8 inch away from the raw edge of the fabric.

zigzag elastic to the waist seam

Fold the elastic and over to the inside. The elastic will be completely covered by fabric. Pin in the layers in place. Zigzag along the bottom edge of the elastic all the way around to secure the waist.

tack seam allowance towards back
fold elastic in and zigzag in place

To secure the seam and the hem of the existing hem leggings fold the seam allowance towards the back of the leg. Tuck any threads or serger threads under the seam allowance. Sew a diagonal stitch from the bottom of the seam across the seam allowance.

You finished!

free baby leggings pattern

Get the Free Sewing Pattern here!

free baby leggings pattern

If you make something using this sewing project, I’d love to see! Please share it on social media with the hashtag #heatherhandmade and tag me!

heather sewing

I believe small sewing moments can create great joy. Find your own “right” way to sew. -Heather

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I LOVE your patterns and instructions! I’m having so much fun making things for my new granddaughter!