There are many factors that figure into buying a briefcase. Let’s take the features you’re searching for one at a time. If this is your first briefcase you need to look for something you’re comfortable with. If you’re an accountant or lawyer then carrying multiple files and papers is the norm. You’ll want something fairly large, with expandable capacity. Look for something that has a comfortable shoulder strap that you can manage easily. Accountants and lawyers tend to be pretty conservative so a black or brown case will surely work. Usually leather is the first choice, but there are many cases made of ballistic nylon with leather trim that are durable and have a professional look.
Today, there are many companies making cases so that every price range is covered. Try the case on in front of a mirror. Try it with the shoulder strap if that is the way you will usually be carrying it. There are many new ergonomically correct shoulder straps on the market. They fit your shoulder and are more comfortable than the old style thinner strap. Briefcases last a long time so you want the case you purchase to be something you’ll enjoy...