I was using a business-style portfolio to carry the things I use on a daily basis. But I am not a business person. My business-tyle portfolio bag broke. It became unusable. The seams came apart. I'd been using it for a long time. I went to several stores looking for a replacement. Nothing seemed right. Then I found this messenger bag sale on Amazon. I ordered the larger size. It is perfect! It is very well-built, and it holds all my stuff just right. There are several compartments plus the main chamber. I keep my wallet, my notebooks, my cellphone accessories, my work stuff, and my digital camera in the bag. The shoulder strap is comfortable. I am sure it's going to last a long time.