The backpack looks unquestionably good. However, to fit him not so much pure as it looks at first glance, because by the curved bars some is lost to space. However, the upside are the two big pockets on the sides for bottles (1.5 - 2L bottles fit in) or smaller, and the compartments in the head of the pack. The outer skin is quite good water repellent, me so far is because even in strong rain not yet gone through. The biggest drawback in my opinion as I said the lack of space in the interior, which is very high but relatively slim. If the backpack is heavy filled, press the ends of the metal rods also very uncomfortable in the back. If it is light filled, it is, however, very comfortable to wear, and then make the bent metal rods also sense that they prevent that you sweat on the back as they prevent the backpack rests directly on the back.