I modeled these after a canvas tote I bought five years ago and use every day. This is an item as durable as it is beautiful, made from Belgian upholstery fabric I bought from a retired upholsterer in Vermont. Super simple construction and durable cotton straps will keep the turtles on your shoulder for many years.
The medium size will get you through most errands, quick grocery runs, and even to yoga and back. The "beach mode" size will live up to its name, or you can put a ton of groceries in it. Either way, it's turtles all the way down.