The Grainline Studio Field knitting bag was always in great demand when I was the General Manager at Knit Purl (the beloved, now closed, Knit store in Portland, Oregon owned by Darcy Cameron.) I was delighted when Karen Templer of Grainline made the pattern (link) available for makers. The Field bag requires 10 oz-weight canvas, has no lining, and has finished seams.
SOTAKCO DRAWSTRING BAG
I am also a huge fan of Svetlana Sotak's design work. She creates measure-and-cut PDF patterns for download for all types and sizes of pouches and bags. I always thought the drawstring bag pattern (link) might work as a Field bag style knit bag. The pattern uses quilting cotton-weight with fusible interfacing, has a lining, and no exposed seams.
Click the video to see learn about the patterns and which I recommend.
Grainline Studio Patterns - grainlinestudio.com/
SotakCo Patterns - www.etsy.com/shop/SotakCo