The purchase of low-cost backpacks--the contradiction between good quality and cheapness>>
1. The fabric of the fabric bag must be strong, wear-resistant and waterproof. The fabric of the bag is usually woven from high-strength nylon, and generally XXX D (Denier) is the standard for strength. The larger the value, the better. DuPont's Cordura fabric is very famous, but generally only high-end bags will be used, two or three hundred dollars package can never use such a good fabric! Even if the salesperson assures you, you must also firmly believe it! Because he is lying.
The generally cheap fabrics of the 420D fabric are already strong and can be used for most hiking needs. The branded bags mostly use fabrics with a fabric of 500D or even better DuPont fabrics. These fabrics can be used in harsher environments. . Cheap bags usually have no description of the properties of the fabric. It requires your experience and knowledge. If you are not fully confident or careful, be careful. PU coating can make your bag better waterproof, to see if the surface layer inside the bag is even. However, in order to meet the need of the function of the mountaineering bag, many joints do not have a rain cover when it is heavy rain, and it will be troublesome.
2. The most easily damaged part of the fastener's quality bag may be it, and it is easier to judge the quality of the fastener. The first is to observe the fastener's workmanship. If the fastener is very rough on top, the edge of the fastener is also uneven. Feel very bad, then this bag will not read again, it must be "junk"! The fastener's workmanship most intuitively reflects the overall quality of the bag. Secondly, if the fastener works well, in order to better test its performance, the “pin†of the buckle can be bent, and the high-quality fastener can be bent more without breaking. Some owners will take the initiative to help you bend it 90 degrees to prove its quality and reliability. Unclear fasteners that have no markings should also be careful.
3. Car line Your bag can not be made of a whole piece of fabric. There must be a place where the nylon thread is sewn. These jobs are done by the machine. The car line of well-crafted bags should be neat, dense and uniform. There should be double stitching in the place where it is stressed to ensure it is strong. This link can be seen in the car line of production of the bag's attitude and the performance of the machine. That kind of thread is everywhere, and the car line is crooked work you still give up! The sturdy fabrics will not give you a deadly blow at a critical moment without a qualified suture!
4. The piggyback system can determine whether the bag is worth buying because it only carries the system's performance and workmanship. It can be seen that piggyback systems are crucial to the entire bag. The piggyback system is the skeleton of the bag. The piggyback system seen on the market is from the simplest TT type consisting of two flat aluminums to the more complex “BIGPACK†“TCS piggyback system†and the X type bears. The purpose of the piggyback system is to distribute the weight reasonably and pass most of the weight to the lower body that the human body can bear. In order to do this, the piggyback system must have a certain structure and strength, except for the titanium alloy used in the top-grade bag, which is almost entirely aluminum alloy material.
The low-cost bags use the TT type backpack system made of flat aluminum made of the cheapest aluminum alloy. You need to pay attention to the following points when choosing your piggyback system: First, the fit of the system to your back. The ideal carrying system should be a S-shape (side) that matches your body curve. When you carry the bag, the bag should fit exactly on your back so that you can distribute the weight.
Secondly, the skeleton (including shoulder straps and waistbands) formed by the piggy back system should have a certain strength, which cannot usually be achieved in two or three hundred bags. The softer skeleton deforms when you carry heavy items. At this time, carrying the system can't distribute the weight properly, and the pressure on your shoulders will increase. Maybe this is what many donkeys have described. It's OK to carry a small backpack in a cheap mountaineering package.
Again, where the joint between the system (framework) and the bag is the place where the most concentrated forces must be strengthened, the weight of the entire bag is transferred to the frame through the joint between the bag and the frame, and then the skeleton will Weight is distributed to all parts of our body. Some cheap bags do not reinforce the joints and carry the flat aluminum in the system when carrying relatively heavy things and even puncture the bags. This is unfortunate to happen during the trip. After packing the bag and backing it, look at the part of the force, whether the forceful part can transmit the force reasonably, and whether the car line is strong enough. If you feel very mysterious, stop thinking about it and give it up. In low-cost bags, special attention must be paid to the strength of the system (backbone) and the firmness of the joints. Usually these are the most significant differences between branded bags and cheap bags. These two aspects directly determine whether your bag can accompany you through thousands of miles, so you must carefully choose.
5. The design of the overall design package is different depending on the purpose of use. For example, mountaineering bags and walking bags are different in terms of balance, convenience, and convenience in design. These should be based on their own needs and the actual environment to choose. For example, whether the number of plug-in can meet your needs, whether the color of the bag meets your requirements, whether the overall shape of the bag is suitable for where you are going, and so on. In fact, if the first four items can pass, this item is not very important because we are not yet a professional traveler.
6. About Military Backpacks Military backpacks are cheap, strong, and durable, and can meet some of the requirements of outdoor sports. However, after all, outdoor sports and military use are different. Military backpacks are obviously less satisfactory in terms of function, comfort, and convenience. One of the experiences and attempts of sports, military backpacks are also a choice. The principle of choosing a military backpack can refer to the preceding five aspects.
However, is it not so that we, the less wealthy donkeys, can really buy quality and cheap bags? Again, the sky won't fall. Low prices must have low prices. For the most part, we all know that DD quality. It is very difficult to find low-cost bags that can truly meet the five aspects mentioned above. Due to price restrictions, these low-cost bags must have such problems.
Once we get deeper and deeper into this sport, we may find that these problems are unbearable. In the end, we must lose the one-of-a-kind bag. When we can't position ourselves accurately in the outdoor sports world, there is a kind of throwing stones to ask for cheap bags. There is no point in this stone throwing, and the benevolent sees the benevolent and the wise see the wisdom.
1. Lift freely, can stand can sit alternate office, stand sit alternate do not hinder busy business at hand.
2. It's easy to operate, just press the button to achieve the purpose of alternate standing and sitting.
3. Memory function storage: that is, the user can adjust the function key to a suitable height according to his own height, and adjust the function key to a fixed position to facilitate the fixed position and use.
4. The appearance is simple and generous, which is in line with the international office trend and different from the traditional desk style which is dull and not easy to move.
5. It is beneficial to the physical and mental health of office workers, increases work efficiency, enlivens the workplace atmosphere and makes the workplace atmosphere more active.
Adjustable Height Work Tables,Electric Standing Tables,Sit Stand Computer Table,Electric Height Adjustable Table
CHEX Electric Standing Desk , https://www.chexdesk.com