Introduction to the use of travel common sense backpacks

Introduction to the use of travel common sense backpacks
Mountaineering, camping, outing, the most indispensable thing is the backpack. A good backpack is not only refreshing and energetic, but more importantly, it can carry a lot of things, liberate your hands, maintain your body balance, and make your journey safer and more comfortable. However, how to find a suitable one in large and small backpacks of different colors is not so easy. Create some concepts about backpacks that will allow you to travel safely and comfortably

Capacity-not just how much you can carry
Capacity is an important factor in purchasing backpacks: the capacity is not enough, hanging items outside is tiring and easy to lose; However, if the capacity is too large, the backpack is not easy to be solid when packing, and the equipment in the bag will affect the balance due to movement. So, choose backpack capacity first to establish a personal equipment list.
 

Here are some suggestions for reference:
1.20-30 liters of small backpacks can be used for round-trip activities or mountain climbing on the same day. 2.40-45 liters of small backpacks can be used for field activities requiring overnight, mountain climbing activities within 3 or 4 days and mountain activities within 3 days. 50-80 liters of large backpacks can be used for mountain activities over 3.3 days and over 4 days
 

In the process of climbing, some equipment such as raincoats, warm clothes and sleeping bags are not reduced with time, and their size and weight are relatively stable. However, food and fuel are consumables, which decrease with the increase of activity time. The quantity of such items has a great influence on the backpack capacity. Some backpacks now use "elastic capacity" design, even after a few days of activity, the backpack can still play solid, but also makes this backpack can be applied to different areas of activity. Generally speaking, due to the application of small and medium-sized backpack and backpack structure does not need this design, and no one such design, if you want to change its capacity size can be added to the side bag or adjust the compression side to bring adjustment.

Backpack system-the skeleton of the backpack
Comparison of Inner and Outer Backpacks
The center of gravity of the outer frame backpack is high, about above the shoulder or shoulder; while the inner frame backpack has a slightly lower center of gravity, which can be adjusted between the shoulder and hip. There is no significant difference in the level of the backpack's center of gravity for physical exertion, the biggest difference is in the sense of carrying and balance. When you need to maintain balance, keep the center of gravity close to the pelvis, which prevents the backpack from shaking at shoulder height. Although the high center of gravity design is not suitable for occasions that require a high degree of balance, it will feel more comfortable to carry on a flat road. Some backpack carrying systems cannot completely solve the weight problem of backpacks. Its main function is to reasonably distribute the weight to various parts of the body to avoid weight concentration on the shoulders. In addition it also provides piggyback center of gravity adjustment to increase balance and safety during action. Medium and large backpacks usually take the back frame as the center to form a carrying system, and the back frame can be divided into two types: outer frame type and inner frame type.
 

This kind of backpack is often called "aluminum backpack". The materials of the back frame range from early wood, bamboo, rattan and iron to modern aluminum alloy and glass fiber. Due to the high strength and light weight of aluminum alloy, this kind of back frame is the most common.
The outframe backpack is a bag fixed on a hard frame with a tight nylon shoulder strap and hip strap. This kind of backpack is easy to load and use, and the weight can be shared by the shoulders and hips. Since the outer frame backpack is carried on the shelf, the back is well ventilated.
 

Although the frame can provide these benefits, it also makes it very inconvenient in some situations: for example, when drilling in dense forest or bamboo; The backpack is easy to be caught and stuck; It is easy to suddenly shift the center of gravity and lose balance when climbing or skiing. In a word, the backpack on the outside is more like a long, flat road.