What kind of travel bag is suitable for short trips?

How to choose a backpack suitable for your own use? Can be considered from the following five aspects:

A. Choose the size of the backpack according to the number of loaded items. If the travel time is short, you are not going camping outdoors, and you don't have many things to carry, then choose a smaller backpack. Generally, 25 liters to 45 liters is enough. This kind of backpack is generally simple in structure, and there is no or little plug-in. In addition to a main bag, there are generally 3-5 attached bags, which are convenient for sorting and loading items. If you travel for a long time or need to bring camping equipment, you should choose a big bag, preferably 50-70 liters. If you need to load many items or have a large volume, you can choose a large backpack with 80+20 liters or a backpack with more external plugs.

B. According to the use of backpacks, the types of backpacks are the same as those of mountaineering bags, but the uses are different. For example, rock climbing bags specially designed for rock climbing activities are generally not designed with hard supports. In order to be portable and flexible, there are many external points for hanging equipment conveniently, and some styles are also specially equipped with padding cloth for sorting equipment. Bicycle series bags designed for riding pay more attention to riding characteristics and can be divided into backpacks and rucksacks. Universal mountaineering bag, also known as camping backpack, is designed to take into account the characteristics of various sports forms and the needs of long-distance marching, and is suitable for mountaineering, exploration and woodland crossing activities. There is also a kind of backpack specially designed for long-distance travel, called multi-purpose bag or sub-bag. Its split structure is basically similar to a mountaineering bag. It can be carried on both shoulders and layered up and down, just like a suitcase. You can carry it on one shoulder or horizontally and vertically. The big and small packages are conjoined structure, which is convenient to use and deeply loved by business travelers. In a word, all kinds of backpacks have their unique scope of application, and the best choice to buy a bag is to use it exclusively.

C. Choose the size of the backpack system according to the body. The knapsack system has a specific scope of application. Although the adjustable backpack has a wide range of applications, it is not unlimited. Therefore, it is very important to choose the size of the backpack system. How big is it? Generally speaking, the stress point of the backpack waist should be on the lumbar fossa above the coccyx, and the fulcrum of the shoulder strap should be flush with the shoulder, slightly lower than the shoulder, so as to facilitate the adjustment and stress of the stress band and make it comfortable to carry. However, if the size of the back is too large, it will have a feeling of falling, and on the contrary, it will have a feeling of being vertical upwards, so that the stress on the waist is not in place. After adjusting the appropriate size, the backpack will naturally stick to the back and be very comfortable.

D. the quality of materials cannot be ignored. Many people often pay more attention to the color and shape of backpacks when choosing backpacks. In fact, the key to the durability of backpacks lies in the manufacture of materials. From the perspective of woven tape, the price difference between ordinary ribbon and high-quality ribbon can reach 3~5 times, and the ribbon selected for large packaging bears more than 200 kg. So there are great differences in materials. For the same 42D fabric, the average fabric size is 280g, while the high-density fabric size is 4 10g/ yard. Therefore, there are great differences in strength and wear resistance between the two fabrics. The fabric is 500D fabric, the ordinary nylon fabric is damaged at 1075 rpm, and the DuPont nylon fabric is damaged at 3605 rpm. From the coating point of view, low-grade backpacks mostly use PVC coating, which will harden when it is cold, while high-grade backpacks mostly use PU coated fabrics, and the hardness has not changed significantly when it is cold. The waterproof degree of fabric coated with PU for four times can reach more than 1500mm. At present, the well-known brands on the market are more particular about materials, better in performance and quality.