Generally you’ll travel by plane for long-distance travel and will bring a best travel backpack or suitcase.but the question is here, do you need to check the travel bag? What is the free shipping limit?

This problem cannot be generalized.

Each airline has different requirements for the weight and size of the carry-on luggage. You can check the details on their official website of the corresponding airline.

The following are restrictions of carry-on baggage on domestic routes:

1.Number of packages: Passengers holding first-class tickets can carry two items with them; passengers holding business class or economy class tickets can only carry one item with them;

2.Weight: the total weight shall not exceed 5 kg;

3.Volume: no more than 7.8*15.7*21.6 inches.

In addition to the above-mentioned luggage, each passenger can also carry 1 waist belt fanny pack and 1 travel laptop backpack.

Exceeding the limit of the specified number, weight or volume, shall be checked

matein travel money belt

Free shipping restriction:

For passengers holding adult or child tickets, each free baggage allowance (including checked and carry-on baggage) is: 40 kg for first class, 30 kg for business class, and 20 kg for economy class. Passengers holding infant tickets have no free baggage allowance.

The size of the checked luggage can not exceed 62.2 inches, which means that the sum of the three sides does not exceed 62.2 inches

For the overweight part, the charge per kilogram is calculated at 1.5% of the normal economy class fare.

Matein carry on backpack

Here're some other related questions for reference:

Are travel backpacks checked or carry on?

Can I check a large carry on backpack?

Can I check a travel backpack?

Can you leave a travel backpack in herculaneum bag check?

How to choose a backpack to check for travel?