I love DIY gear, and when I needed a pack cover, of course I wanted to make my own. It is so light, packs down small, and surprisingly abrasion resistant. I got caught on some trees, and it took the abuse is stride!!
I like this kit as a good starter project. It's inexpensive and you just get what you need. With that said, I made a pack cover out of the Membrane Silpoly and wished I had used a heavier fabric. It isn't durable enough for me. I tore mine in two places the first time using it on my pack. I'm using a much heavier cover now for reliability. I recommend using at least the 1.1 oz. fabric if you think the cover may get some regular use.
Good starting project, to get acquainted with your sewing machine and fabric. However 1 yard, may not be enough for your project .. I ordered three kits and got two covers for external frame 65 liter packs. My finished covers were 42 and 44 inches wide. Length is no problem. I also added an attached inside out stuff sack ,that doubles to attach the cover to the top of my pack for wind gust protection.
title says it all. Easy to follow directions, works well.
This is a great beginner DIY project to build my sewing skills. I'm working my way up to a hex tarp.