25x22x43cm (9.8"x8.6"x17"). Capacity：about 30L. High-quality material: Trekking Rucksack is crafted from oxford fabric, high intensity and durable. 70L, 100L can be freely contracted to expand, 70L before expansion, size: 75 40 30cm, 100L after expansion, size: 90 40 30cm.
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