The total volume of the bag, usually, includes all regular pockets (including external ones).
A large volume allows you to put a lot of things inside, but it significantly affects the dimensions, weight and price of the product itself. Therefore, when choosing, you need to strike a balance between capacity and convenience.
It is believed that a volume of
25 – 35 liters will be quite enough for the things one person needs for a trip lasting 3 – 4 days. More detailed recommendations can be found in special sources.
At the same time, we note that even with numerous things, a large bag is not always the best option. In some cases (for example, if several people are traveling), it is more convenient to buy several products of a relatively small volume and divide the luggage between travelers.
Now on the market there are such volumes of bags:
small - up to 50 liters,
medium - from 51 to 75 liters,
large - from 76 to 100 liters and
huge, whose volumes exceed 100 liters. At the same time, you should not forget that there are also
travel bags for hand luggage, as well as an even smaller version
of hand luggage for low-cost airlines.
The number of additional external compartments provided in the bag.
Compartments differ from external pockets (see the relevant paragraph) in larger sizes — they usually occupy the entire side of the bag. Thus, rather large items can fit in the
outer compartment, and it will be easier to get to them than when transported in the main compartment. One of the most popular applications for such compartments is the transportation of travel change of clothes, for example, for a train trip.
The number of internal pockets in the design of the bag.
Such pockets are especially convenient for storing small valuables: things are located inside the main compartment of the bag, under the main clasp (or even a lock) and at the same time they are not lost among other contents of this compartment.
