Large capacity urban backpack that can be turned into a travel bag

The Dodge backpack is reversible into a travel bag. It's the perfect bag for going on the weekend or for a busy day: it can easily contain work items such as a 15-inch computer, sports items (boxing gloves, large towel, climbing item, sports shoes ) and he does the end-of-day food shopping. The bag has an urban design, totally original, as comfortable in the city on a bike as in the mountains while hiking. It is the true companion for a weekend away from the city. The canvas is very thick black cotton. The zips are YKK brand, the market reference. Capacity of more than 30 liters (33 to be exact) dimensions: 48cm in height and 30cm in diameter. He owns : - a padded laptop pocket (up to 16") - a side pocket with zipper - a mesh pocket with zipper under the opening - an inside pocket with zipper for a passport - an inside pocket without zipper for a phone