Augustina is a massive beach bag, or use for shopping. Measuring 21" wide and 15" tall, with a 4" gusset, it features grommets to thread your straps through. It has 2 big pockets one on each side, held together with magnetic closures. 
 
There is also a full video tutorial on how to make Augustina, as well as the pattern instructions with full pictures.  So if you are in the market for a whopper shopper, make Augustina!!