Thank you for viewing! ☺︎ Please read the profile before purchasing. This is a vertical lesson bag. How about it for lessons or a music bag? ☺︎ A4 size flat files and pocket files will fit. I think you can also use it for a short outing (*^ ^*) ☆ Size (flat) Height 35cm x Width 28cm No gusset, with lining ☆ Material Twill (large flower), Oxford (lining) ☆ Tag ASHIATOYA's tag is used. Since this is a handmade item, there may be slight variations in size, stitching, and distortion. Also, because multiple items are made, the pattern and tag may differ from the image. Please understand this before purchasing. Music bag Lesson bag Vertical lesson bag Vertical tote Long tote Tote bag Lessons Girl Simple Nordic style Navy blue