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 external pockets in the design of the bag.
The advantage
of such a pocket is the ability to get to its contents without opening the main compartment of the bag. External pockets are especially handy for storing relatively small items that need quick access, such as documents, toiletries, first aid kits with the most important medicines, etc.
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.
