It can be said that any mountaineering activity that lasts for a night requires a large backpack. The predecessors once said: Your home is on your back. All the belongings, including food, drink, use, and sleep, are placed in such a backpack. Large backpacks can be divided into two categories according to their appearance: internal frame type (commonly known as vertical backpacks) and external frame type (commonly known as aluminum frame backpacks); vertical backpacks mainly rely on the support of the frame inside the backpack close to the user's spine, and its internal frame will bend with the user's bones. As long as it is packed properly, the center of gravity of the entire backpack will move with the user, which is very ergonomic.
Aluminum frame backpacks have a large surface area and generally have poor waist and shoulder design. They often cause back pain when loaded, not to mention drilling through bamboo forests or crossing other difficult terrains!
However, aluminum frame backpacks have good compartments and many large and small pockets, which makes it very convenient to organize and pack equipment. There are two price ranges for vertical backpacks in my country: imported and domestic. It is recommended to buy a backpack with a capacity between 60-80 liters. The price of imported backpacks is around 1,500 yuan, while the price of middle-class backpacks ranges from 200-500 yuan. Imported backpacks are guaranteed to be used and have different degrees of modification or innovation every year. Domestic backpacks do not provide a guarantee of use and most of them copy the appearance of foreign brand backpacks. The quality is unstable and the problem is frequent. Aluminum frame backpacks are less suitable for mountaineering or long-distance vertical walking. If you only engage in camping or hiking routes in open terrain, it is a good choice.
Mountaineering bags are divided into two categories: one is a large backpack with a volume of 50--80 liters; the other is a small backpack with a volume of 20--35 liters, also known as "assault bags". Large mountaineering bags are mainly used to transport mountaineering supplies during mountaineering, and small mountaineering bags are generally used for high-altitude climbing or assaulting peaks. Mountaineering backpacks are designed to cope with extreme environments. They are exquisitely made and unique. Generally, the bag body is slender, and the back of the bag is designed according to the natural curve of the human body, so that the bag body fits closely to the back of the person to reduce the pressure of the straps on the shoulders. This type of bag is waterproof and will not leak even in heavy rain. In addition, mountaineering bags are not only used for mountaineering, but also widely used in other adventure sports (such as rafting, crossing the desert, etc.) and long-distance travel.
Large travel bags are similar to mountaineering bags, but the shape of the bag body is different. The front of the travel bag can be fully opened through a zipper, which is very convenient for taking and putting things. Unlike mountaineering bags, items are usually put into the bag from the top cover of the bag. There are many kinds of small travel bags. Be sure to choose one that is comfortable to carry, not just the appearance.
It is divided into two categories: hanging bag type and backpack type. The hanging bag type can be carried on the back or hung on the front handle or rear rack of the bicycle. The backpack type is mainly used for bicycle travel that requires high-speed riding. Bicycle bags are equipped with reflective strips that can reflect light to ensure safety when riding at night.
This type of bag consists of a bag body and an external aluminum alloy frame. It is used to carry large items that are not easy to fit into a backpack, such as camera boxes, gas tanks, etc.
In addition, many backpacks often indicate on the label which sports they are suitable for.