I found Ripstop by the Roll after stumbling onto the Make Your Own Gear subreddit, I think while doing some research into lightweight backpacking. I didn’t have any sewing experience, but the ZPP Kit was on sale so I bought it on a whim.

I picked up some bias tape from the thrift arts and crafts store. The sewing machine is my housemate’s. The kit is very straightforward and there are a number of videos on YouTube which guide you through making it.

Attaching the zipper.
Attaching the zipper.
Attaching the bias tape..
Attaching the bias tape..
Bias tape from the other side.
Bias tape from the other side.
Boxing out the corners. This turns the pouch from an envelope to a box.
Boxing out the corners. This turns the pouch from an envelope to a box.
Finished.
Finished.