You can see another version here.
This is how to put the bag together. It has one or two interesting steps that I hope you’ll find useful.
For how to make the fabric look here.
You will need lining fabric, threads and a sewing machine.
2. Note: I have added only one handle. If you plan to carry anything heavy you might want to have two handles. These instructions don’t include that.
Cut the handle about 43 inches long by 3.5 inches wide. That length allows for attaching to the bag by just over an inch.
The length works well for me but if you’re much taller or shorter than 5ft 5ins you’ll want to check whether you need to adjust it.
4. Making a false gusset (optional but looks nice!).
At the corner, place the side seam on top of the bottom seam.
8. Repeat for the other corner.
10. Fold the handle in half lengthwise & sew – I used zigzag because it’s more secure.
13. Make up the jeans fabric into a bag following steps 3 – 8 above.
14. Zigzag along the top of the bag and the lining to stop fraying.
15. Insert the lining bag into the jeans bag, wrong sides together. The top of the lining should be showing by about an inch above the top of the jeans bag.
Finish the ends of the handle with a zigzag stitch and attach securely to the bag on the inside at the sides. Overlap the handle and the bag by at least an inch. I avoided sewing over the side seams because of the bulk of the fabric I would have to have sewn over.
Sew the handle in place around all of the overlap and diagonally across the middle for extra strength.
And that’s it!