General, the so-called large outdoor backpack usually has a capacity of more than 60 liters.Generally speaking, the capacity of 60-75 liters is the most suitable for outdoor activities in spring, summer and autumn.The advantage of this capacity is that it allows you enough space to carry equipment, and the backpack itself will not be a burden on weight.
Now ,you should have an idea to choose a backpack with a large capacity.
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