The blue square collection is made of chrome-tanned calfskin with an aniline finish. This traditional tanning method maintains the beauty of the leather over the years. The raw cut edges that are hand-painted in blue enliven the business character of the collection and are a highly recognizable distinctive element. Shoulder bag with shoulder strap and zip closure. Interior organised with 1 open pocket, 1 removable keychain, 1 cellphone pocket, 1 zippered pocket and 2 pen pockets. 1 external zippered pocket. This bag comes complete with piquadro dust-bag for storage. Â shoulder bag, inner cell phone pocket, internal pocket, logo, external pocket.