There are some briefcases that do come with secret compartments. These briefcases often have a spring loaded compartment when actuated exposes the hidden compartment. This type of compartment is often used to store a hidden gun.
Both McKlein and Korchmar make breifcases with expanding compartments.
You can get the Worthington Secret Compartment Jewelry Box.
One way to tell the difference between men and womens briefcases is that womens usually cost more. Although they may look a lot alike, womens briefcases tend to have hidden compartments for things such as makeup, mirrors, clothing, and even shoes.
No, there are no solar powered briefcases.
There are fire resistant briefcases out there. They are mostly made from metallic materials and provide protection for valuables.
Yes there are companies that are making more environment friendly briefcases such as Samsonite.
No, I have not come across any like that.
Lawyer briefcases can be made out of almost any material that a standard briefcase is made out of, not just purely the leather material .
There are plenty of briefcases that have removable linings, but you're going to have to pay substantially more for them, given the extra attention to detail.
There are a few waterproof briefcases but they're usually bulky looking and certainly aren't made of leather.
There are some briefcases that are friendly when it come to organic, however they do not last as well as the regular briefcases.
I think a hard briefcases are more secure since it is harder to rip then soft sided briefcases where you can rip with a knife.