Materials

• Backpack

• Fabric

• 1″ Elastic

• Fabric Scissors

• Ruler

• Seam Ripper

• Sewing Machine

• Safety Pins & Straight Pins

Step One

Measure and cut 7.5 by 9 inches of fabric. Fold the fabric 1 inch vertically (the width of your elastic) plus 3/8 inches (for the seam). Pin and sew to create the casing for the elastic.^*

Step Two

Starting at the bottom, use the seam ripper to open the two seams on the side of you backpack. I opened about 9 inches on each seam.

Step Three

Pin the fabric to your backpack at the bottom of the side. I used 2 pleats to fit the 7.5 inches of fabric onto the 5 inch backpack side.

Sew the fabric to the backpack with a .5 inch seam.

Step Four

Flip the backpack inside out, and pin the sides of your fabric inside the original seam. Resew the seam together, but leave a gap for the elastic casing.

Step Five

Cut 4 inches of elastic and use a safety pin to pull it through the casing. (I put a safety pin on each end to make it easier to work with the elastic’s small size.)

Pin the elastic and fabric to the original seam, and finish resewing.

Step Six

Flip your backpack right side out and enjoy your new backpack watebottle holder!