The Modern Curves Tote Bag is a free pattern from Remona from The Stitching Scientist. The front of the bag is pieced in a curved design, and has a zippered pocket off to one side. The top is left open, though it would be pretty easy to add a magnetic snap during construction. The long strap can be worn cross body. Go to The Stitching Scientist for the pattern and tutorial.
[photo from The Stitching Scientist]