How about Deuterdort's outdoor backpack, OK?

Dortmund backpack is a big German brand. Its disadvantage is its heavy weight, but the backpack system is very strong and suitable for reloading. Its backpack is quite cost-effective and can be tossed outdoors for several years. About authentic Dortmund, you can search for poor tribes on Taobao. I bought two backpacks in his house, registered in official website, both of which are genuine.