A neat idea! If you ever went shopping with a bag, and found the outside has a dirt smug on it, now you can knit one that is reversible! This is a fun pattern, and will stretch a bit, to accommodate many items. Make this sturdy with bedspread cotton! Use knitting needles, US # 7 for bottom of bag, then change to circular needle US # 11 for top of bag. It has a drawstring top for easy closure.