hey guys/gals- I have a three week trip planned for this fall and I would like to have a small rucksack. It needs to be simple, drawstring top closure, 3/4" shoulder straps, maybe a sternum strap to prevent it from sliding off my shoulders, this could be added if necessary and that's about it. It would be used for picking up groceries and other supplies in town, carrying laundry, a liter of water and snacks for side trips from camp or town. Max weight to carry, less than 8 pounds if that much, capacity around 13-15L. Weight should be as light a possible, yet durable and folds flat or rolls so it easily fits in my pack.
I have an OR 15L stuff sack that I no longer use and thinking about stitching on shoulder straps.
I've never done anything like this and I'm open to suggestions and ideas, especially about attaching the straps. If you have photos they're very helpful to me when making something from scratch.