A slat for use in a rolling shutter is provided. The slat comprises a engaging track located at a first edge of a body and a receiving track located at a second edge of the body. Illustratively, the engaging track has a hook-shaped profile, and the receiving track comprises a lip member and a guard member defining a space adapted to receive therein an engaging track of an adjacent slat. The engaging track and the receiving track are designed to minimize the space required for the rolling shutter to be retracted around a spindle.