This is a complement needed by my Black Raincoat, which I used in Vitoria (basque Country) some weeks ago. I realized I needed a bag to carry the jacket when there was no rain. It had to be very light, since the sporty activity for which it is needed, is going to music festivals around Europe, which means all day and most of the night out and about.
So I cut two squares of 40cm x 40cm (plus 2 cm seams all around), and a smaller rectangle for the inside pocket.
I cut the superior part of the pocket and sewed the two parts to a black zipper. I sewed it then to one of the bigger rectangles.
Next, I zig-zagged both halfs all around, made two channels in the upper part, and sew them together.
Finally I introduced two black ribbons: from the inferior corner to its corner above, all around the loop and back into the same corner, in both sides, being the ribbons oposite in their rounds.
The result is very good. It can be easily opened and closed, because the ribbon and the bag fabric are soft. The good part of this bag is that it is really small and can be worn in the pocket when one is wearing the jacket. Or one can use it to carry other stuff when traveling.
After using it next trip around Europe, I will report its goods and bads.