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Park Young-jun TV provides information on clothing and equipment needed for outdoor activities such as mountaineering. Also, various reviews and information on mountaineering clothes and outdoor gear are posted on Naver's 'Gowin Club'. Please refer to it. https://cafe.naver.com/windstopper From this episode, we will start talking about backpacks. If you know how backpacks have developed, you will know why they are shaped like that and how to carry them.