This document discusses the design of a phone case accessory for an 18-year-old suburban girl named Zoey Phelps. It defines design criteria such as being thin, lightweight, strong, sleek, and black with rounded corners. Ideation explores using materials like rubber, metal, plastic, or silicon in colors like purple, zebra, or black. Prototypes are created and refined to arrive at a solution - a phone case with a thin, integrated wallet on the inside and a clip to securely attach it.