Yoga Mat Bags

I have three gorgeous daughters-in-law who like yoga.  Hats off to my sons for choosing such great girls!!  Anyway, I thought I would make them each a bag for carrying their yoga mat.  Here's the result:

Almost makes me wish I did yoga!  I used this pattern, but really thought that it need a closure at the top. I added 2" to the top edge, made a casing and inserted cording and a cord stop.  The strap is sewn on the outside in the original position like this: