I made a yoga mat bag using Amy Butler’s free pattern. Overall I thought the pattern was good. Amy Butler’s instructions are very simple and easy to understand.
1. I would make the strap about an inch thinner, to make it easier to wear. Following the pattern, it is 4.5″ finished.
2. The pattern directions have the pocket extending all the way from the bottom of the bag, thought I better mention it in case you’re wondering why it looks different than the pattern photo. I made them a few inches shallower and added the bias tape for trim.
3. The top hem is extremely thick when sewing through all the thicknesses of strap, lining, and the exterior fabric (about 10 layers if my math is correct), especially if you use upholstery fabric as I did. Make sure to use a heavy guage needle. I used a 14, but 16 would be best.
*4. I would add a good 4 or 5 inches to the length of the bag. I actually added a button hole in the inside top hem so I could add a drawstring (the pattern directions have it open at the top with no drawstring), but when I put my yoga mat inside it comes right to the top of the bag so there is no room for the top to be drawn in. I just did some Googling and found that others have had this same problem, so definately add to the length! If you don’t plan on adding a drawstring, I would only add about 2 or 3 inches to the length.
A big thanks to Amy Butler for the free online patterns!