You could attach straps and a belt to a nylon stuff sack and call it goodor you could use the Granite Gear Womens Meridian Vapor Ki Backpack to carry your ultralight load and actually get suspension, support, and even some pockets. The Meridian Vapor Ki is a top-loader-style pack, but it has a full-length front zipper so you can access gear in the middle or bottom without unloading everything. A foam back panel, padded straps and hip-belt, and compression straps ensure your load rests on your hips and doesnt move around. The top lid converts into a hip pack for short day hikes, and two stretchy side pockets hold water bottles, maps, or other items you want accessible. This Granite Gear pack comfortably carries up to 30 pounds.