Every Halloween I swear I’m going to plan ahead, and every year October sneaks up on me anyway. When the idea of fully hand sewn or handmade costumes fall apart at the last minute, I still like to have something handmade for the kids. That’s where this little fabric treat bag comes in.
This bag is quick to sew, reusable year after year, and best of all it closes on its own when you pick it up. When it’s sitting on the table, it stays open so kids can see what’s inside. Once you grab the handles, the top naturally pulls closed and keeps everything tucked in.
No drawstrings. No snaps. No buckles. Just simple construction and smart handle placement. If you’ve sewn basic straight seams before, you can make this!
What Makes This Bag Different
Most treat bags rely on drawstrings or ties. This one doesn’t. The shape of the bag and the placement of the handles do the work for you.
When the handles are pulled apart, the opening spreads wide. When the handles come together, the top edge folds inward and closes the bag. It’s sturdy, washable, and easy to scale up or down.
Finished Size
This version finishes at approximately:
- 11 inches tall
- 10 inches wide
- 3 inch base
You can easily adjust the size once you understand the construction.
Materials
- Cotton fabric for the outside
- Cotton fabric for the lining
- Coordinating fabric for handles
- Thread
- Basic sewing tools
Medium weight quilting cotton works well. For a sturdier bag, use canvas or home decor fabric on the outside and cotton for the lining.
Cutting Instructions
Outer Bag
- Cut 2 rectangles: 12 inches wide by 14 inches tall
Lining
- Cut 2 rectangles: 12 inches wide by 14 inches tall
Handles
- Cut 2 strips: 4 inches wide by 18 inches long
These measurements are intentionally simple and forgiving.
Prepare the Handles
Fold each handle strip in half lengthwise, right sides together. Sew along the long edge using a half inch seam allowance.
Turn right side out, press flat, and topstitch close to both long edges if desired. Set aside.
Assemble the Outer Bag
Place the two outer fabric pieces right sides together. Sew down both sides and then sew across the bottom.
To create the base, box the corners. If you’re new to boxing corners, it’s a simple technique used in many bag projects and worth learning once. Boxing the corners is what creates a flat base on a bag. After sewing the sides and bottom, with the bag still inside out, pinch one bottom corner so the side seam and bottom seam line up. Measure 1.5 inches from the point and draw a line straight across. Sew along that line and trim off the excess. Repeat for the other corner. The wider the line you sew across, the wider and sturdier the base of the bag will be. Sewing closer to the point creates a narrower base.
Turn the outer bag right side out.
Attach the Handles
Lay the bag flat and measure in 2.5 inches from each side seam. Place one end of a handle at each mark, with the raw edge aligned to the top of the bag and the handle pointing downward.
Repeat for the second handle on the opposite side of the bag.
Baste the handles in place using a narrow seam allowance.
Assemble the Lining
Sew the lining pieces together the same way as the outer bag, including boxing the corners.
Leave a 3 inch opening along the bottom seam for turning later.
Join the Bag and Lining
With the outer bag right side out and the lining inside out, place the outer bag inside the lining. Right sides should be facing.
Match side seams and pin around the top edge. Sew all the way around.
Pull the entire bag through the opening in the lining. Stitch the lining opening closed.
Push the lining into the outer bag and press the top edge flat. Topstitch around the opening if you like a crisp finish.
How the Self-Closing Effect Works
The handles are attached slightly inward from the side seams. When you lift the bag by the handles, that inward pull causes the top edge to fold toward the center.
If you want a tighter closure, move the handles closer together. If you want a wider opening, space them farther apart.
This is an easy adjustment once you’ve made one bag.
Fabric and Customization Tips
- Heavier fabric gives a more structured bag
- Add interfacing to the outer pieces for extra stability
- Make longer handles if you want the bag to hang over a shoulder
- Size it up for library books or gifts instead of candy
Supplies That Work Well for This Project
If you’re gathering materials, these are useful basics to have on hand:
- Quilting cotton bundles
- Medium weight fusible interfacing
- Coordinating thread packs
- Rotary cutter and ruler
These are basic staples for a lot of simple sewing projects like this one.
Final Thoughts
This is one of those projects that looks more complicated than it is. Once you understand how the bag closes itself, you’ll probably start thinking of other ways to use the same idea.
Reusable gift bags, project bags, library totes and much more. The basic structure stays the same.
If you sew one, you’ll almost certainly sew more.
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