What is the difference between the sizes of outdoor backpacks?

According to ordinary people’s experience, no matter how big the capacity of a backpack is, people who use it will fill it up, even if you are just participating in outdoor activities for a day, so the most important thing when choosing a backpack is to first determine Depending on the type of activities you engage in and your personal preferences, try to choose a backpack with a small capacity that is easy to carry.

For day-trip activities, small and medium-sized backpacks of 20 to 35 liters are generally sufficient to meet the user's needs. As for the functionality and capacity of the backpack, it completely depends on the consumer's budget, purpose and the items they carry. weight. The capacity of backpacks usually used for travel within a week ranges from 35 liters to 75 liters. They are medium and large backpacks. The purchase is usually determined based on the number of days of use and the amount of items carried. Of course, the capacity of the backpack can also be selected based on personal circumstances. and type.

For longer trips (more than a week or overseas self-guided travel), large backpacks with a back frame system (inner frame and outer frame) are more suitable for long-term travel or outdoor activities. Yes, the capacity of a backpack is usually in the range of 75 liters to 100 liters. The first requirement for choosing a large backpack is to decide whether to use an internal or external frame system.

Polar or winter travel. For more than a week, there was no external supply.

Generally, you will need to use this kind of large-capacity backpack when you are traveling in the wild for more than seven days and are completely self-sufficient, or when you need to camp in the snow, or when you are assigned to be a porter. The capacity of the backpack is more than 95 liters. When choosing this type of backpack, large pads near the shoulders and waist are very necessary. You must choose a comfortable shape so that you will not be overwhelmed by the heavy objects on your back and cannot breathe.