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DIY Koozie Tutorial with FREE Pattern!

For this month’s Fat Quarter Tuesday project we thought it would be fun to learn how to create a custom Koozie! We even supplied a FREE printable sewing pattern for you to use when making your own! And, we added a PNG file for you to use in our Pattern Creator software so you can customize the fabric around it! Follow along below to see how to sew up your Koozie and how to use your FREE Koozie Pattern in our Pattern Creator!!!


  • 1 Fat Quarter of: Basic Combed Cotton or Premium Cotton,  
  • 1 Fat Quarter Insul-Fleece Interfacing
  • Sewing Machine
  • Sewing Thread
  • Heavy Weight Embroidery Thread
  • Hand Needle
  • Scissors
  • Pins
Koozie Pattern PNG Download
Koozie Sewing Pattern PDF Download

Using the Pattern Creator!

If you choose to use the Pattern Creator to design your own Koozie, download the PNG Koozie file to your computer. Then go to our Pattern Creator & start a new design by going to File –> New.

A dialog box will appear. Here you will enter the size of a fat-quarter, for Basic or Premium Cotton that will be 27″W by 18″ H. You can also choose your background color here, when done click Apply.

Next, You will go to Add –> Image. Another dialog box will appear, and you will choose the Creator Koozie File you saved to your computer. The image will enter your workspace, but you will need to set the size of the design. 

Click the gear in the left corner and enter 5” as width and 11.5” as height. Copy & Paste your koozie to fill your fat-quarter. Now your koozie is ready for decorating! 

You can add more images from your computer, names clip art and more to completely customize your design. Also remember that one side will need to be rotated 180 degrees so that it is upside down when designing, like seen below. Once the pattern is sewn that side will be folded upward keeping it right side up.

Keep in mind when designing, you will need two pieces of fabric to sew up the koozie, The outside decorated fabric and a lining. So, you can either have the same on the inside or create a coordinating piece for inside pattern to go along with your outside design!

If you already have a fabric you would like to use for the lining, you can print the free PDF sewing pattern to cut your pattern pieces out of any fabric. Once your have this pattern printed, measure the pattern to make sure the setting currently set on you printer did not shrink the pattern to a different size, it should have printed at 5″ by 11.5″ if correct. If not correct, review your printer settings to make sure no options are selected that would have adjusted the print size of your pattern. 

We used a design by Farijazz for our custom koozie.



You will need to cut out:

  • 1 Outside/Self
  • 1 Lining 
  • 1 piece of Insul-fleece

First you will baste your insul-fleece to the wrong side of one of your pattern pieces at 1/8” seam allowance.

NOTE: Insul-fleece is a great material that helps insulate your beverage. It will reflect heat or cold back to its source. You can find this in fabric stores usually where you find your interfacing!

Next, you will then place your pattern pieces right sides together and pin. Sew around at ¼”, leaving a 1.5″-2” gap at the top of one end of the koozie. 

Now trim excess fabric away from corners and notch your fabric around the curves. This will allow your fabric to lay flat when you turn your pattern right side out.

You will then press under fabric when open & top-stitch or handstitch to close.

Now it is time to stitch the sides together. This is done by hand with a strong decorative stitch we chose a cross stitch with a contrasting thread.

All done! These koozies are easy to make and super fun to sew! They make great gifts or party favors!



Koozie Pattern PNG Download
Koozie Sewing Pattern PDF Download

Pattern Creator

Chinoiserie2 twigs by farijazz

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