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When I first climbed a mountain 5 years ago, I used an ordinary school backpack to store my trekking stuff, which consisted nothing more than some clothes, a cheap tent, a blanket, and two Tupperware tubs for my food. After a couple of treks, my bag began to give up. The straps became loose, plastic buckles cracked, the fabric ripped, and stitches unraveled. Since I planned to seriously pursue mountaineering and adventuring, I knew I had to have a more suitable pack.At that time, most trekking/mountaineering packs that I knew of are made by foreign manufacturers such as The North Face,...