According to the material, the general suitcases can be divided into two types: soft cloth suitcases and hard suitcases (hard suitcases can be divided into ABS and PP), according to the structure, they can be divided into two types: vertical trolley suitcases and horizontal suitcases, according to the size (from small to large): 18 inches, 20 inches, 22 inches, 24 inches, 26 inches, 28 inches, 30 inches! The commonly used ones are the 20-inch three-side sum of 115CM that can be carried on the plane and the 28-inch three-side sum of 158CM that can be checked in for free on the plane!

The disadvantage of hard suitcases is that they are generally too heavy, so fewer and fewer people are using them now! Here we mainly talk about soft suitcases: If you say what kind of suitcase can hold more things, it must be a horizontal suitcase, but it is recommended that MMs do not choose it, because it is difficult to pull it, and you have to carry it by hand when going up the stairs, etc., so leave this kind of work to GGs! It is recommended that MMs use trolley suitcases when going out, and boys can choose it by themselves!

How to check the quality of a suitcase

First, let's talk about a trolley case: of course, the trolley must be built-in, and the material must be steel (external trolleys and wheels are definitely not suitable for the rough loading and unloading of various flights nowadays)! The case must have a steel frame, and the fabric should preferably be rainproof. The material with a larger particle size is better because it is more wear-resistant. Needless to say, the wheels must also be built-in (by the way, many boxes now say that they are equipped with four wheels for turning, and checked boxes must not use such wheels because they are exposed too much outside and are easy to fall off). The material of the wheels is of course rubber, and the smaller the sound when pulled on the ground, the better. Zippers are also very important, but it is not necessarily the bigger the better. It still depends on the material and the feel of pulling it! In fact, the box is also very simple, and other things are not very important. It depends on your own preferences, such as suit bags or adding high layers!

When consumers buy travel suitcases, they should first check the appearance of the suitcase, that is, whether the suitcase is straight and the corners are symmetrical. You can stand the suitcase upright or upside down on the ground to check whether the four feet of the suitcase are on the ground and not skewed, and check whether the surface of the suitcase is flat, with no scratches or cracks. Pay special attention to the symmetry of the four corners of the case shell (top and bottom). Open the box and check the box opening. The box openings should match each other, the gap should be small, the seams should be closed, the hinges should rotate flexibly, without obstruction, the buckle should be closed, buckled, and opened, the box should be firmly adhered, and the textile fabric should not have skipped threads or cracked pieces. The handle (mop) should be firmly installed and should not be loose. The pull rod should be flexible and have a certain strength. The telescopic rod and the fixed rod should be properly matched, and the expansion should not be too large. After the locking button of the pull rod is pressed, the pull rod should be able to be smoothly extended and retracted. The box running wheel should rotate flexibly, and it is best to use a running wheel with bearings. When checking the box lock, you can arbitrarily combine several sets of digital numbers for testing, and open and close normally.

When buying a travel soft case, first of all, you should pay attention to whether the zipper is smooth, whether there are missing teeth or misalignment, whether the stitching is straight, the upper and lower lines should match, and there should be no empty stitches or skipped stitches. Generally, there are skipped stitches at the corners and bends of the case. Secondly, you should check whether there are any damages inside and outside the case (such as broken warp and weft, skipped threads, cracked pieces, etc.). The inspection method for accessories such as pull rods, running wheels, and case locks is the same as the method for buying travel suitcases.

The handles, pull rods, and running wheels of the suitcase are most likely to be damaged during use. The handles of the suitcase are mostly plastic parts. When choosing, you should focus on checking the quality of the plastic. Generally, good quality plastics have a certain plasticity, while poor quality plastics are hard and brittle, and are prone to breakage during use. Most of the suitcase pull rods are retractable. When choosing, press the lock button and stretch it repeatedly several times. The pull rod should be flexible, and the clearance between the fixed rod and the telescopic rod should be moderate, and the expansion should not be too large. When choosing a box with wheels, the simple way is to turn the box upside down, lift the wheels off the ground, and turn the wheels by hand to make them idle. The wheels should rotate lightly and flexibly, and the wheels and axles should fit neither tight nor loose. After checking the wheels one by one, you can put the box on the ground and drag it back and forth. It is better if the whole box feels normal when you move it manually.

Looking at any bag, as long as the following elements are not flawed, then this bag is basically a finely made and reliable bag.

Surface: flat and smooth, no seams outside the design, no bubbles, and no exposed edges.

Lining: Whether textiles or leather products are selected, the color should be coordinated with the bag surface. The lining has many seams, and the stitches should be fine and not too large.

Strap: An important part of the bag and the most vulnerable part. Check whether there are no seams or cracks on the straps, and see if the connection between the straps and the bag body is strong. All kinds of bags need to pay attention to the straps, and backpackers will pay more attention to the load-bearing and firmness of the straps, so pay special attention when choosing.

Hardware: As the external decoration of the bag, it plays a finishing touch. When choosing a bag, you should pay close attention to the shape and workmanship of the hardware. If the hardware is golden, be sure to ask whether it is easy to fade. For bags with handles such as trolley cases and makeup cases, you should pay attention.

Thread: Whether the bag is sewn with open or dark thread, the length of the stitches should be uniform and there should be no exposed thread ends. Pay attention to whether the stitching is wrinkle-free and whether the thread has reached the end. Check whether the place with thread ends will cause the bag to crack.

Glue: When choosing a bag, be sure to pull each part to see if the glue is firmly bonded. Especially some more fashionable bags, because of their beautiful styles and outstanding embellishments, they will be very eye-catching, but if these embellishments are not firmly joined, it will lose its characteristics.

Zipper: Check whether the surrounding threads are tight and whether the joint with the bag is natural. Especially for bags that store hard objects such as key bags and cosmetic bags, you should pay more attention.

Buttons: Although it is an inconspicuous accessory, it is easier to replace than zippers, so you should pay more attention when choosing. For bags that are often opened and closed, such as CD bags and wallets, you should pay attention to the practicality of the buckle when choosing.

How to identify the fabric of bags

Many bags are made of genuine leather, and the most important thing for leather bags is quality. To identify the authenticity of leather goods, you must learn the sensory identification method, which is essentially to observe the characteristics of leather goods by touching, looking, bending, stretching, etc.

Natural leather: There will be fine lines when squeezing with your thumb. The surface of leather with better leather is plump and elastic; while leather with poorer leather has larger wrinkles; if there are no fine lines, it is not natural leather.

Goat leather: The pattern is arranged in a wavy shape, rough and delicate, and is thicker, tighter and lighter than sheepskin.

Yellow cowhide: The material pattern is fine, and the pores are arranged in irregular dots.

Pigskin: The surface pattern is usually distributed in groups of three pores, the surface is relatively rough, and can be soft or hard.

Buffalo leather: The pores are larger than yellow cowhide, and the leather fibers are also slightly coarser.

Sheep leather: The pattern is arranged in a half-moon shape, it is soft, the fur is dense, and the epidermis is thin.