shoulder bag brand, fashionable shoulder bags are mainly used by women, most of which are made of PU material, which is small in size and usually used to replace handbags that women must take when going out. Fashion shoulder bag is more suitable for ladies who wear casual clothes to carry when they go out. Fashion backpack is easy to carry, completely liberates hands, and is also very suitable for ladies to use in informal occasions. Backpack brand fashion backpack recommended men's and women's backpack brand sports backpack design is very jumping, more bright colors. Major sports brands such as Nike and Adidas launch a large number of new fashion shoulder bags every year, which are sought after by a large number of trendy men and women aged around 2. Backpack brand, because it is mainly for fast fashion, the style is very fast, and the sports backpack is more general in material and workmanship. HTTP, the global computer bag giant, launched the world's first double-shouldered computer bag in the 198s. Because of the use of shock-proof protective materials, special ergonomic design and unique reinforcement technology, it is extremely solid and durable, and is very popular. The computer backpack not only has a shock-proof protective compartment specially used for holding computers, but also has considerable space for holding small items such as luggage. Nowadays, many high-quality computer backpacks are also widely used as sports travel bags.

The sports categories are Adi, Nike and Puma = =. Specialized brands are: Jin Shengsi, Tiger, Saber, Belgin and Samsonite. These brands are very famous. See, you like it. If you like, go to their counter to buy it. Now online shopping is also very convenient. If you install a computer, I suggest you use a double-shoulder computer bag with a vacuum shockproof interlayer. This patent for vacuum shockproof technology seems to belong to the brand Jinshengsi. There are not many things to carry, so it is advisable to choose a backpack with a small volume. Generally, 25 liters to 45 liters is enough. This kind of backpack is generally simple in structure, with no or less external plug-ins. Except for a main bag, it usually has 3-5 attached bags, which is convenient for sorting and loading items. If you travel for a long time or need to carry camping equipment, you should choose a big bag, preferably 5-7 liters. If you need to load a lot of items or have a large volume, you can choose a large backpack with 8+2 liters or a backpack with more external plugs.

The general 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, adventure and woodland crossing activities. There is also a backpack specially designed for long-distance travel, which is called a multi-purpose bag or a sub-bag. Its split structure is basically similar to that of a mountaineering bag. It can be carried on both shoulders and layered up and down, and it is similar to a suitcase. It can be carried on one shoulder and can be carried horizontally and vertically. The large and small packages have a conjoined structure, which is convenient to use and is very popular among business travelers. In a word, all kinds of backpacks have their unique scope of application, and the best choice for buying bags is to use them exclusively.

when choosing a backpack, many people often pay more attention to the color and shape of the backpack. In fact, the key to the durability of the backpack lies in the manufacturing materials. From the perspective of ribbon, the price difference between ordinary ribbon and high-quality ribbon can be 3~5 times, and the load-bearing capacity of ribbon selected by BIG PACK is more than 2 kg. Therefore, there are great differences in materials. For the same 42D fabric, the common fabric is 28g per yard, while the high-density fabric weighs 41g per yard. Therefore, there are great differences in strength and abrasion resistance between the two fabrics. The destructive test was carried out on the fabric on a grinding machine. For the same 5D fabric, the ordinary nylon cloth was damaged at 175 rpm, while the DuPont nylon cloth was damaged at 365 rpm, and its abrasion resistance was three times that of ordinary nylon. From the coating point of view, low-grade backpacks are mostly coated with PVC, which will harden when they are cold, while high-grade backpacks are mostly coated with PU fabrics, and their hardness has not changed significantly when they are cold. The waterproof degree of fabrics coated with PU for four times can reach more than 15 mm.

a handbag that a lady must take when she goes out. Fashion shoulder bag is more suitable for ladies who wear casual clothes to carry when they go out. Fashion backpack is easy to carry, completely liberates hands, and is also very suitable for ladies to use in informal occasions.