Challenge ECOPAK Rolltop Backpack

Made a rough rolltop backpack out of Challenge ECOPAK fabric. Mostly made to test out the pattern I had in my head - results are that it works ok, but the rolltop area isn't great - it doesn't naturally fold and roll super easily.

Other than that, the backpack is pretty comfy and pretty light. Small external zipper pocket and side pocket, and the pocket inside is for a stiffener / back padding panel. The gold horizontal strap is removeable and is for compressing the bag down to be a bit flatter - works ok but the bottom could've used a similar treatment.