How do I choose a backpack that is suitable for my own use? The following five aspects can be considered:
A. Choose the volume of the backpack according to the quantity of the goods loaded. If the travel time is short, and the outdoor camping is not ready, carry less goods, should choose a small and medium-sized backpack, general instructions 25 to 45 liters is enough. This kind of backpack is generally simple in structure, without or with less hanging, in addition to a main bag, usually set up 3-5 bags, easy to classify and load goods, if travel time is longer, or need to carry camping equipment, then choose a large bag, 50-70 liters is appropriate. If you need to load items odd or larger, you can choose 80+20 large backpacks or more backpack.
B. chooses backpacks based on the use of backpacks, the same as mountaineering bags, but their uses are different. For example, the climbing bag designed specially for rock climbing activities, generally do not design hard support, in order to be easy to carry and bend, more external hanging points, to facilitate the lifting and hanging equipment, some styles are also specially equipped with finishing equipment pad. The bicycle bags designed for cycling pay more attention to the characteristics of cycling, which can be divided into backpacks, bags and so on. Mountaineering bags in general sense, also known as camping backpacks, are designed to take into account the characteristics of various forms of movement and the needs of long-distance marches, suitable for mountaineering, adventure and woodland crossing activities. There are also backpacks specially designed for long-distance travel, called multi-purpose bags or sub-mother bags, and their split structure is basically the same as mountain bags, can be shoulder-backed, up and down layered, but also similar to the suitcase, open cover, can be one shoulder back, can also be carried horizontally and vertically, the size of the package has a connecting structure, can be divided into easy to use, very easy to use. Welcome on business trip. In short, all kinds of knapsack have their unique application scope. The best option for purchasing is special package.
C. According to the body choose the size of the backpack backpack system has a specific scope of application, adjustable backpack although the scope of application is large, is not unlimited, so the selection of backpack Size Backpack system is very important. What size is appropriate? Generally speaking, the stress point of the waist of the backpack should be on the lumbar fossa above the tailbone, and the fulcrum of the shoulder strap should be roughly flat with the shoulder slightly lower than the shoulder, so as to facilitate the adjustment of the stress belt and stress, and to be comfortable with the back. But the back size is too common to cause a fall sensation, otherwise there will be a sense of upper and lower longitudinal, so that the waist is not in force. When the right size is adjusted, the backpack will naturally be pasted on the back. It's very comfortable.
D. Not to neglect the quality of materials Many people in the choice of backpack, often pay more attention to the color and shape of the backpack, in fact, the backpack can be strong and durable key lies in the manufacture of materials. From the loom point of view, the price difference between ordinary and high-quality loom belts can be 3-5 times, BIG PACK chooses the loom belt bearing capacity of more than 200 kg. So there is a big difference in the material, the same for 42D fabrics, ordinary fabrics 280 grams per yard, and high-density fabrics 410 grams per yard, so the two fabrics from the strength and wear resistance are very different in the friction machine on the fabric destructive test, the same for 500D fabrics, ordinary nylon cloth 1075 turns when the damage, and DuPont nylon cloth It was damaged at 3605 turn, and its wear resistance was 3 times that of ordinary nylon. Seen from the coating, low-grade backpack with PVC coating, its cold will harden, while high-grade backpack with PU coating fabrics, its cold hardness has not changed significantly, four PU coating fabrics waterproof can reach more than 1500mm. At present, the famous brand in the market is more exquisite in materials, and the quality is better.
E. good structure and design is the guarantee of superior knapsack performance. Mountaineering bag has good performance. The important factor is that its design structure is scientific and reasonable. Good design not only gives you the overall beauty, more importantly, you can enjoy excellent performance in use, we can see this more intuitively from the design structure of BIG PACK TOP backpack. The structure of its carrying system absorbs the principle of Nepal's basket, and adopts the double "V" design. First, the lining aluminum frame is "V" shaped, set a horizontal bar in the shoulder positioning, and according to the human body curve of the aluminum frame for stereotyping treatment, users can also fine-tune according to individual body shape; second, the back packing part is "V" shaped, wide and narrow, thick and thin, after loading is a basket type, such a structure is more convenient for force transmission. The TOP series backpacks are equipped with ETA-3 adjusting device. The adjusting part is equipped with three holes. The device is equipped with a structural pad to adjust the position of the holes, which can change the size of the backpack. Changing the position of the structural cushion can move the backpack's center of gravity up and down. TOP series knapsack also designed a device to increase the volume, vertical capacity of the top pack under a zipper, open the zipper can increase the capacity of the backpack about 10 litres, horizontal adjustable backpack on the main bag with two vertical zippers, can be opened to make the backpack coarser and expand the volume, especially for larger items. Users can adjust their height and width according to their needs. With such a backpack, you can travel conveniently. As for the use of backpacks, after you understand the structural principles of mountaineering bags, the use of the method is in no words.
