Anyone looking for a robust travel bag with optional, but full-fledged backpack carriers that perhaps is plus quasi waterproof, is the right place. The bag (incl. Base which is covered with an abrasion-resistant material externally) is made entirely of a very resistant, plan type, waterproof material, the zipper (with lock receiving) is covered by the flap 3 cm and is thus protected from water and The carrier recordings plan material was taken twice. Seams and zipper are of course not keep permanently under water-tight, but also more rain and dust have no chance. The selection criterion for me were the backpack carrier, which (unfortunately partially made of plastic, which however also makes a robust impression) can be hooked from a side pocket on demand via two carabiners. They allow for bedachtem packing a very pleasant and quick wearing over long distances, only a chest strap could be integrated. Inside the bag is rather spartan, is the right and left an open compartment in the lid has a closable zipped mesh compartment for wet textiles, documents, etc., more storage bag there, but I wanted to at all. The main handle could be a little more comfortable, but is functional. Great are the stable handles left and right at the top of the bag when storing and balancing the bag. In addition, there are a few loops on the outside, for example to safely store, and a name / address cards to hang on the carrier. A perfect sports and travel bag (they'll soon me one size smaller for this purpose and for shorter trips to buy), which I use often and with joy, almost unique in their (backpack) functionality, durability and quality and definitely worth the money !