So the Chiemsee offers considerably more space than the Giga by Deuter, however, is not quite as stable.
My daughter would never say that the Chiemsee bag pack is not great. For stylish he scores clearly.
But as a father I can likely recommend a Deuter Ypsilon. This model we bought for our little girl. And that's a real school bag pack. Plenty of storage space and absolutely great backpack carrying system. Almost as good as a really good mountaineering backpack.
Who not only looking for a cool backpack, but also a portable, I recommend the Deuter Ypsilon.
Those looking for a stylish and affordable, but still stable backpack, is in good hands at the Chiemsee-bag pack.