Size Closed: 12.5in x 13.75in x 5in There is no other Yazzii Bag that has all the options that this bag offers. There are 4 sleeves that consist of 28 pockets in total of different sizes including elasticized storage for your pens, pencils and other tools. We have increased the depth, width and length of this bag and the most unique point of difference in this bag is that it’s a center fold so it can be laid open like a book on your table and everything you need for your classes will be in full view. This organizer holds your pattern books and much more and also has an external pocket to keep your keys and or mobile phone handy. The secure strap is long enough to hang over your shoulder and be hands-free.