For an experienced mountaineer who often goes outdoors,  mountaineering bag can be said to be one of the most important equipment. Clothes, mountaineering sticks, sleeping bags, etc. all depend on it, but in fact, many people don’t need to travel often. After buying a mountaineering bag, it may not be used once a year. Therefore, I think it’s necessary to sort out the relevant knowledge of mountaineering bag, so as to avoid stepping on the pit. Mountaineering bag doesn’t have to be good enough to suit themselves.

Most people should travel occasionally. When choosing a backpack, the first choice may also be the capacity. If you don’t go to a special environment, such as snow mountains, there is nothing else to consider. Short distance travel is small package, long-distance travel is big package.

If you travel for more than a week, you need an oversized backpack of more than 70L. However, everyone may carry different things, which can be adjusted according to your personal situation.

In addition, we also need to consider your personal size. You can’t let a petite girl carry a 70L oversized bag, can you? This is not only abrupt, but also leads to unstable center of gravity and excessive physical exertion.

So, how can we choose the right size climbing bag according to our size?

Ask someone to measure your torso length with a soft leather ruler.

Trunk length refers to the distance from your seventh cervical vertebra, the bone that protrudes most at the junction of neck and shoulder, to the vertebra parallel to your crotch.

The length of this trunk is consistent with your inner frame needs. Don’t think you should carry a large bag when you are 1.8 meters old. Some people have long bodies and short legs, while others have short bodies and long legs.

Generally speaking, if your torso length is less than 45 cm, you should buy a small bag. If your torso length is between 45-52 cm, you should choose a medium-sized bag. If your torso length is more than 52 cm, you should choose a large bag.

Once the backpack capacity rises to more than 30L, the backpack system should be considered.

There are usually five elastic belts: Center of gravity adjustment belt, belt, shoulder belt, chest belt, backpack compression belt

The connecting belt between the upper part of the strap and the backpack usually maintains a 45 degree angle. Tightening can move the center of gravity to the shoulder, loosening can move the center of gravity to the hip, and through the adjustment between the shoulder and hip, fatigue can be reduced. On a flat road, you can raise the center of gravity a little, and on a downhill road, you can lower the center of gravity.

The most obvious difference between professional backpacks and ordinary travel backpacks is the belt.

It is very important, because many people are useless!

A thick belt can effectively help us share the weight of our backpack and transfer part of the weight from the waist to the crotch.

The belt can be adjusted according to personal needs to make the back comfortable.

Good backpacks and shoulder straps are not only thick and breathable, but also can be adjusted at will, which is in line with our ergonomics, so as to reduce colleagues with a sense of weight-bearing and improve comfort.

The chest strap is used to adjust the distance between the two shoulder straps, so that the backpack can not only be close to the body, but also will not feel oppressive, which can effectively reduce the sense of shoulder weight.

Tighten your backpack to make it less bulging. In addition, make the external equipment more stable and ensure that the center of gravity does not move.

What is plug-in?

Just hang things outside your backpack…

A good plug-in system should be reasonably designed. Common outdoor equipment, such as mountaineering bags, sleeping bags, and ropes, can be hung, and the distribution of plug-ins should not be too messy. For example, if you hang a moisture-proof pad, it will be embarrassing to design it directly above the backpack rather than at the bottom.