Size
Generally, briefcases are designed to look compact and slim. A key element in this approach is the design of the interior, so check the inside dimensions and how it is configured. Consider what you need to carry in it first, then look for one that provides a good fit.
If looking to store your laptop as well as other business essentials, look for one with extra pockets and compartments (for accessories, chargers, cables). This will be a benefit when going to grab something quickly, rather than rummaging around for something stuck under a pile of other items. A briefcase that is too large can be cumbersome and look out of place (while also being very heavy). One that fits tour body well, is light enough, and fits your key items will be an asset to be valued, while also looking great.
In general, a briefcase that is around 16″ x 14″ x 4″ is an average size that will be suitable for more uses. One can certainly go smaller, or larger, depending on needs and personal preference.
Leather Thickness
Quality, in most cases, will be of the utmost importance when you’re considering a leather briefcase. Is some situations maybe a cheaper case is just what’s needed – a synthetic leather that can get dinged, scratched, and dirty without much worry. In most cases, though, like a quality pair of shoes, a quality leather briefcase that’s cared for will perform well and look excellent for years.
Leather thickness will be a balance of factors. On one hand, a thicker leather will often be stronger and more durable. However, it will also be heavier. A thinner leather will be lighter, though more prone to nicks, and cuts. Quality bag makers usually do a fine job of pairing an appropriate leather with their bag design, to ensure it lasts for years while also being as light as possible – Carl Friedrik does this well by utilizing Italian Vachetta leather in many of their bag designs.
Type of Leather
Often, a quality leather briefcase will be made from natural leather. There are some synthetic options which can be beneficial in some cases (lower cost, increased water resistance), though usually, a vegetable tanned natural leather will be best. This type of leather wears well, looks great over time, and can have a finish applied to make it more water resistant, if desired.
Weight
The weight of a leather briefcase is roughly proportional to its size; where larger bags are heavier. This is due to additional material, internal linings, more pockets, and larger and or longer hardware (buckles, zippers, clasps). Some popular briefcases, like the Palissy 25-hour large briefcase, include a shoulder strap. This can add some additional weight, while also allowing for additional comfort, as it can be carried over the shoulder rather than only carried by hand. In a way, this can make it feel lighter, since it also frees up your hands during travel.
The thickness of the leather is one factor that contributes to weight. While thinner leathers usually lead to lighter bags, if the leather is used as a covering over, say, a metal briefcase interior, the overall item might be heavier. As is with most accessories, lighter is usually better, as long as it fits and protects everything you need.
Color
Brown, black, tan, and navy are the most common briefcase colors. Those in very professional environments might opt for more conservative colors. Some briefcases include highlight color linings (brighter, livelier colors) to add some personality and pop and style to the look. Carl Friedrik is well-known for this subtle and stylish visual element.
Finish
The finish applied to the surface of a briefcase can have a huge impact on its overall look and function. For example, some could be shiny, add water resistance, or even include textures or patterns. While surface textures are more common on synthetic leather products, some natural leather products can be tooled, and finished with antiqued stains to give it a unique visual appeal.