Waxed canvas rucksack/backpack with roll up top by treesizeverse,
StudioKat Designs’ Festival Pocket Belt A Paper Sewing Pattern from StudioKat Designspap
Roll-top Hip Pouch | North St. Bags
Fully featured backpack with free sewing pattern and step by step tutorial. Has a roll over top so you can add more or less and keep the bag the right size for the contents. Great school backpack for the kids too.