How to Sew an Insulated Lunch Bag

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Who doesn't look forward to a lunch break? You get to relax, visit with friends and recharge with great food: it's exactly what we all need in the middle of the day. But, sometimes a crumpled brown paper bag or a sorry canvas sack can put a damper on our slice of afternoon freedom. Ditch those boring excuses for containers and bring some cheer to your noon-time meal with a colorful, insulated lunch bag that you made yourself. Fill it with equally adorable snack bags — which you also created, of course — and totally on-trend eats, and you'll be the talk of the break room.

(Image: Beth Huntington)

Things You'll Need

  • Straight pins
  • Hair elastic
  • Large button
  • 3 3/4-inch x 7 1/2-inch piece of heavy cardboard
(Image: Beth Huntington)

Step 1: Cut Your Fabric

Cut two pieces of the following 12 inch x 15 inch fabrics: a pair for the outer fabric, another pair for the lining fabric and one more pair for the insulated fabric. You should have six pieces in all.

(Image: Beth Huntington)

Step 2: Cut Squares Out of the Bottom Corners

Cut 2-inch squares out of the bottom corners of each piece of fabric.

(Image: Beth Huntington)

Step 3: Pin the Outer Fabric Together

Place the outer pieces of fabric with their right-sides together. Pin along the sides and the bottom. Leave the top open.

(Image: Beth Huntington)

Step 4: Sew a 1/4-Inch Seam and Press

Sew a 1/4-inch seam along the sides and the bottom edge. Be sure to remove the pins as you sew.

(Image: Beth Huntington)
(Image: Beth Huntington)

Press the seams open with an iron.

(Image: Beth Huntington)

Step 5: Create the Bottom Corners

To make the bottom corners, match the side-seam with the bottom-seam. Pin in place, then stitch across the pin line with a 1/4-inch seam. Be sure to remove the pins as you sew.

(Image: Beth Huntington)
(Image: Beth Huntington)

Step 6: Turn the Bag Right-Side Out

(Image: Beth Huntington)

Step 7: Place the Lining and the Insulated Fabric Together

Place the insulated lining on the wrong sides of the lining fabric. The right-sides of the lining fabric will be facing together — there should be four pieces of fabric in all.

(Image: Beth Huntington)

Step 8: Pin and Sew in Place

Pin along the sides and the bottom edges, but leave a 4-inch opening in the bottom of the bag. Sew along the sides and the bottom of the bag, leaving a 4-inch opening in the bottom.

(Image: Beth Huntington)
(Image: Beth Huntington)
(Image: Beth Huntington)

Step 9: Create the Bottom Corners

To make the bottom corners in the lining, match the side seams with the bottom seams and pin in place. Sew a 1/4-inch seam. Be sure to remove the pins as you sew, and then leave this piece inside-out.

(Image: Beth Huntington)
(Image: Beth Huntington)

Step 10: Insert the Outer Piece Into the Lining

Insert the outer piece into the lining piece, so the right-sides are together and the insulated fabric is on the outside.

(Image: Beth Huntington)

Step 11: Cut an Elastic Hair Band

Cut an elastic hair band down to a 4-inch piece.

(Image: Beth Huntington)

Step 12: Fold the Hair Band in Half

Fold the hair band in half and pin it to the top center of the bag, between the lining fabric and the outer fabric. Line up the cut edges of the elastic with the raw edges of the fabric.

(Image: Beth Huntington)

Step 13: Pin and Sew the Top of the Bag

Line up all the raw edges at the top of the bag and pin them in place. Sew around the top edge with a 1/4-inch seam. You'll be sewing right over the ends of the elastic hair band so it's secured in the seam. Be sure to remove the pins as you sew.

(Image: Beth Huntington)
(Image: Beth Huntington)

Step 14: Turn the Bag Right-Side Out

Turn the bag right-side out by pulling the lining fabric through the bottom opening.

(Image: Beth Huntington)
(Image: Beth Huntington)
(Image: Beth Huntington)

Step 15: Sew the Opening Closed

Tuck the raw edges into the opening in the bottom of the bag and sew along the edge to close it.

(Image: Beth Huntington)

Step 16: Tuck the Lining Into the Bag

Tuck the lining into the bag and adjust the corners so that they match.

(Image: Beth Huntington)

Step 17: Press and Topstitch the Top Edge

Press the top edge with an iron. Then, topstitch 1/4-inch around the top edge to hold the lining in place.

(Image: Beth Huntington)
(Image: Beth Huntington)

Step 18: Attach the Button

Measure 3 inches from the top of the bag and attach the button in the center.

(Image: Beth Huntington)

Step 19: Cut Cardboard Bottom

Cut a 3 3/4-inch piece of heavy cardboard. Then, cut a 5-inch x 9-inch piece of lining fabric. Wrap the fabric around the cardboard and place it into the bottom of the bag to give it structure. This should be removed when you wash the bag.

(Image: Beth Huntington)
(Image: Beth Huntington)

Step 20: Pack Your Lunch

Fill your bag with a healthy lunch and get ready for loads of compliments from your friends and coworkers!

(Image: Beth Huntington)

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