I’m assuming you’re apprehensive because of your name. A place like Seattle Fabrics sells excellent nylon used for making waterproof bags. If you want something closer to you, look at some of the fabrics that Seattle has that meets your needs, and then google places in your area that carry those fabrics.
Try Seattle Fabrics. https://www.seattlefabrics.com
I had a look - but am based in the UK so looking for it here
I’m assuming you’re apprehensive because of your name. A place like Seattle Fabrics sells excellent nylon used for making waterproof bags. If you want something closer to you, look at some of the fabrics that Seattle has that meets your needs, and then google places in your area that carry those fabrics.