Sewing instructions for this onigiri bag under the read more! It's less an exact pattern, more a recipe and assembly instructions you can use to make your own
Out of rice fabric, cut a rectangle. The rectangle should be roughly the size of two squares put together. The finished bag will be that size minus about half an inch to an inch, so base it on that. Cut the lining fabric the same size, if you are using lining fabric. If you are not using lining fabric, cut the rice fabric about two inches longer (if you are making a small pouch instead of a backpack, maybe only go an inch longer).
Cut the nori; it will also be a rectangle the size of two squares put together. Choose its size based on the size of the rice fabric. Mine was a little over a third the width of the rice fabric, and was basically just a rectangle with the corners rounded. If you do not use non-fraying fabric for the nori, you will need to hem the nori before attaching it
Note: make sure the stretch goes perpendicular to the length of the fabric, not along it. That will help the bag maintain its shape when things are in it
use 1/4" seam throughout (for everything but the nori)
My rice fabric was roughly 13" by 26"
center the nori on the rice fabric, pin in place, and sew along the long sides of the nori to attach it to the rice fabric. Leave the short sides unsewn. In the middle of the nori (lengthwise), topstitch across to separate the nori into two roughly square shaped pockets (this is to keep things you put in the pocket on the front from sliding into the pocket on the back, and vice versa
Fold the rice fabric in half right side together so that it's a stack of two squares. With the fold at the bottom, sew up the sides, leaving the last inch at the top unsewn (or half inch, if you are making a pouch instead of a backpack. If you are making an unlined backpack, leave the top two inches unsewn). Set it aside
Fold the lining fabric the same way, if using. Sew up the side seams the same way, but on one leave a gap unsewn in the middle of the seam for turning the finished back right side out
Line up the rice fabric and the lining fabric, still wrong sides out, and sew them together along the unsewn edges. Do not sew them together as a cohesive circle, there should be a gap left on both sides (this is where the straps/cords for cinching the bag will go)
Turn right side out through the gap in the lining, and kinda nestle the lining inside the rice fabric so that it all lines up. Then topstitch about an inch (or however far from the top that unsewn gap on the sides extends) from the top of the bag on one side to create the channel for straps/cord. Repeat for the second side.
Handsew closed the opening for turning in the lining
If you are not using a lining, skip the lining steps, fold the top inch (ish) of the rice fabric down towards the interior of the bag, and topstitch to create the two channels for the straps/cords
Create the straps (for a backpack) or cords (for a pouch). I crocheted mine out of worsted weight yarn held triple with an H hook, but you could also use thicker cord or ribbon or whatever you want.
I measured by holding the crocheted chain from where I wanted the bottom of the backpack to be (near my hip), up in front of and over my shoulder to my upper back (where I wanted the top of the backpack to go), then added about 3 inches (for the closed pouch width), and doubled it (so that it can cinch the bag). Use whatever method works for you to measure the straps/cord
Thread the straps/cords through the onigiri as you would for any drawstring pouch
If you have the right tool to make grommets, you can use them in the bottom corners of the onigiri to create a place to attach the straps for the backpack. I don't have one the right size, so I just tied a knot at the bottom and hand sewed it to the fabric a bunch.
Enjoy your onigiri bag! Feel free to tag me in it if you want!!