I just wanted to thank you for this great tutorial. It was just what I needed. Today I made a pack for my yellow lab using your ideas. Unfortunately, I didn't have zippers on hand so I made pockets without zippers. I used one of my husbands corduroy shirts. I will probably live to regret that as labs are notorious shedders. Next time, I will make a trip to the fabric store for the ripstop nylon you suggested. It took me about 2.5 hours but I needed to adjust the directions for my dog's size and the fabric I was using. All in all, I'm very pleased with the result and so is Wrigley! We so very much appreciate your time and effort in putting this tutorial out there.
Here's a picture of my happy dog wearing his new, custom-made gear:
Thanks so much!