Your choice of two sizes, reversible or zippered style, both with 7 pockets, AND 1,2,or3 straps (!) makes this a very versatile pattern. I designed this with 2 short straps and one optional long strap (to help the back-challenged!). Outside are 2 pockets that are perfect for a water bottle and a book, or whatever else you'd like to have handy. Inside, there are 5 pockets of various sizes. And there is a stiff bottom insert to help keep the bottom from sagging. Go to the beach, go to an art class, go to the park, go with your baby! You can pack it all up in this great bag. I am modeling the large size in the photo (and I'm 5'2" to give you an idea of scale). ** This is a sewing tutorial! Included are 6 pages of instructions (with dimensions for cutting fabric pieces - all rectangular) and 5 photos. ** Copyright (c) 2006, 2009 - Feel free to sell what you make from this pattern, but please include some attribution to me for the design. BASIC SKILLS NECESSARY how to use a sewing machine basis sewing skills knowledge of basic sewing terms SIZING / FINISHED MEASUREMENTS Large - approx 11" high by 17" wide, or Small - approx 9" high by 15" wide. Both are 4" deep.