Yoga Mat Bag from Old Pants

Step 5 Create the drawstring and casing

Test your bag to see how much space you have at the top to create the drawstring casing. With the bag still inside out, fold down a hem to match the size of your drawstring (a little bigger to allow movement, of course). I used the hem of the pants, so I didn't need to fold it under to hide any edges, but depending on the type and condition of your pants, you may need to turn the hem twice to make it nice. Leave a space unsewn so that you can thread your drawstring later.

To create the drawstring, use the same principle as the strap. I used the double-stitched seam from the other pant leg because I like the way it looks, and it's very strong.