A multi-piece slipcover for a piece of furniture having a base including a back, a seat, and a pair of armrests, and one or more seat cushions and back cushions that are unattached to the base. A base cover of the multi-piece slipcover includes one or more panels for covering the back, the left and right armrests, and at least a portion of the seat of the base. One or more seat cushion covers and one or more back cushions covers cover the one or more seat cushions and back cushions, respectively. At least one of the one or more back cushion covers has trapezoidally-shaped front and rear surfaces, and is made from a fabric having a stretch in length which behaves dynamically with respect to a stretch in width. A minimum stretch in fabric width is 60%, while a minimum stretch in fabric length is 40%.