Each BookBook is brought to life with hand craftsmanship and distressing, ensuring no two are exactly alike. From dual zippers with leather pulls, that at first glance look like bookmarks, to the sturdy reinforced hardback covers, BookBook is a vintage work of art built to protect modern day Macs. Along with classic looks, BookBook was designed to use as a traditional sleeve or to work while connected via elastic corner clips. Those dual zippers give you the option to charge your MacBook while it safely stays inside BookBook. This case is designed with good looks and smart functionality, cover to cover.