This is the focus that ALICE is most concerned about. M's APS system is compared with B's TCS (CR and AIR FLEX systems are not on the same grade, so it is excluded). Both M and B emphasize that the backpack focuses on the person's waist, that is, the human tail bone naturally rises. That part will reduce the pressure on the shoulders of the backpack (in fact, the design of all backpacks is the same).
B's TCS is based on two aluminum alloy (titanium alloy) tubes. When the weight is on the back, it is equivalent to carrying the TCS tube frame rather than the body. Therefore, B can better focus the human body's bearing point on the tail. , Memorize four positions, and to prevent the body from shaking is also very good, especially in difficult areas, when the body itself needs a large swing operation, TCS can reduce the inertia of backpack shock.
M's APS system emphasizes the relevance of the body and the back of the human body. Although the APS's carrying system adjustment is much more complicated than that of the TCS, if properly adjusted, the entire body can be very humanized and closely attached to the back of the human body. It is much better than the four obvious stress points of TCS. Of course, the APS also places emphasis on the waist. A hypertrophic fibrous foam version is used to close the back of the person's back, and then two aluminum extensions similar to B's CR carrying system are used to transmit pressure from the body to the shoulder and back to the back.
M's skid-proof function is achieved by two small aluminum alloy tubes at the bottom of the backpack, and it also has a taste of TCS. However, the actual effect is the same as that of JACK WOLFSKIN and VAUDE. The effect is not as good as the TCS, and the left and right backpack straps connected to the lumbar pad must be tightened in order for the anti-shake skidding function to work (this relates to the backpack strap material to be introduced later).
In addition M's shoulder has a big feature: Because M's piggyback system is more effective than TCS to make the lumbar end bear heavier pressure, so its shoulder strap is a bit thinner and thinner than B. It is very suitable The relatively narrow shoulder width of the Asian race will not be like that of the B. The two hypertrophy shoulder straps will increase the shoulder compression area and disperse the shoulder bearing force, but it will put the shoulders of people with narrower shoulder widths. The bone was very painful. And with the same baggage weight, M's shoulder force is reduced much more than B's, and the main pressure is transmitted to the back of the waist by the APS system.
Once again, M's burdened system adjustment is complex. When B buys, it is best to let the business introduce clearly!
Backpack material design:
Obviously, B's backpack is much more dense than M, and it's more solid. The straps of the M bag are too soft and it is easy to slide. When the backpack is heavy, the strap must be tightened frequently, but after a while, it loosens again. This is a fatal flaw in domestic production of M packages! However, the waterproof effect of the M package is much higher than that of the B, and the waterproof JACK WOLFSKIN is the best. Moreover, M is best known in the world for its J-type large-ring buckle zipper, which can make things in the backpack, regardless of the upper and lower layers, can be easily taken out. This is a very user-friendly design and is also in the backpack industry. Resistant to the selling point of survival.
The top bag of the M bag can be removed separately to make a simple purse, or it can be made into a more sturdy large purse with the waist pad. This design, FREETIME, and JACK WOLFSKIN are used only when the top bag is too heavy. When leaning back, it is easy to tilt forward to touch or oppress the back of the head. It feels uncomfortable. While B uses a conical top bag, it cannot be dismantled, but loading more things will not press the back of the head. There are two large storage bags on the left and right sides of the M package, which are more airy than B and can hold many things that are often required to be taken in and out.
In terms of fasteners, M can be said to be a collection of various products. The main fasteners are DURAFLEX, which is very durable. This is the same as B. All zippers use YKK, and B uses YBS, which is not as strong as YKK. Carrying the fasteners for system adjustment, M used NIFFCO. I introduced this kind of fasteners before. I can attach the strap tightly. Although the elastic tolerance is not as good as DURAFLEX, I don't need to constantly adjust the carrying system. Can be tighter than the DURAFLEX card, making up for the M-strap's overly soft defects.
In terms of capacity, B is much worse than M, M55 liters of FOSTFIRE, all pulled up, can hold about 100 liters of things, and B's TCS maximum 80 liters, can only be equivalent to about 60 ordinary backpacks or even more The capacity of the bottom. On the outside, the two companies are very economical, not as good as those of SEA TO SUMMIT. However, M has more hanging points than B, and can buy a plug-in to supplement it.
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