Montblanc Business Bag Montblanc Extreme 2.0 Backpack LargeMontblanc Extreme 2.0 Medium Pouch 123938. With its bold black colour, the combination of plain and carbon fibre print motif leather and matt black metal fittings, the bag is the ideal companion for young urban explorers intensely living their daily life. The Backpack Large features 3 main compartments, 1 open front pocket; internally: padded compartment for laptop, 2 mobile phone pockets, 1 padded open pocket, 1 zipped pocket, 3 writing instrument loops.