Montblanc Sartorial Medium Black Document Case 128538. The Montblanc Sartorial Collection speaks the language of modern elegance. Made from Saffiano leather print, this medium document case in black features one main compartment accompanied by two front zipped pockets, perfect for storing small items that require quick and convenient access. The spacious main compartment comfortably accommodates documents, a laptop up to 13 inches and a mobile phone in the dedicated pocket with two writing instrument loops.