1. The First Peekaboo Bag
Named after a child's game, the Peekaboo bag made its debut in Fendi's Spring/Summer 2009 collection. Available in various sizes, the bag catapulted into every fashionista's dream list thanks to its distinctive top flap that is secured with a twist lock. In fact, it got so popular that it became a hot canvas for artistic collaborations (see below) while a men's version was rolled out in 2014.