Bigger on the Inside Drawstring Backpack


Buy the Bigger on the Inside Backpack on Craftsy!

  • Prices are in USD
  • 14 page full color tutorial with photos
  • 8 pages of computer generated pattern pieces (6 pattern pieces total, must be printed and taped together)
  • Dimensions provided as well as pattern pieces
  • Detailed construction and zipper instructions
  • This is a PDF Sewing Pattern. You must be able to open and print a PDF file.
  • A download link will be provided after purchase
  • Sorry, no refunds on digital products


This design takes your standard flat drawstring backpack and adds a large oval bottom to maximize how much it can hold! As a bonus, this drawstring bag stands up while you rummage through it. Feel free to stuff the inside because the zip pocket on the outside is the perfect place to stash your phone and keys for security and easy access. The size works well for adults and older kids. (This is my perfect gym bag, my size 9 running shoes nest right in the bottom.) For smaller children, print at 85% with just a few minor modifications outlined in the blog post here.
Materials Needed

Main Fabric: 3/4 yard
Lining Fabric: 1 1/4 yards
Fusible Interfacing: 2 1/2 yards
12” or longer nylon zipper
90/14 Microtex/Sharp needles recommended
Marking tool such as chalk or an air erasable marker
Point turner

Finished Size

14” tall x 12” wide x 5.5” deep

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 5 reviews
by Shere on
Great Size Bag

This is a great pattern. The oval bottom makes for more room. The only thing I dislike is the saggy lining, but I will make adjustments for that on future versions.

by Ann on
Fun to make

Love this bag. Lots of room. Instructions are detailed and easy to follow.

by Letha on
Perfect Gym Bag!

My teen girls needed gym bags for their PE clothes for school. I wanted an easy one that was sturdy. This was PERFECT! I ultimately used 1/2" grommets instead of button holes, but other than that, I followed the pattern exactly... Easy to follow directions too! They start back to school in a couple weeks, and I have a feeling I'll be making more for their friends. Thanks for the great pattern!

by Michelle K on
Great Pattern!

Loved making this back pack! It did take me a little while, because I'm a beginner sewer, but once I was done I loved the finished product! It looks so well made and durable! My daughter already wants me to make her one. I plan to use mine a lot. Highly recommend this pattern. Would make great gifts.

by Cathie Horne on
Something for the guys!

I made 2 backpacks as Christmas presents for the younger men in my life. They were very well received and I had fun sewing them.

Erin had previously helped conquered my fear of zippers and this pattern forced me to figure out how to use my automatic buttonhole function. Once I conquered the buttonholes, this pattern, as always, came together quickly.

Another great one, Erin! Thank you for all of your inspiration and hard work.