Most of the cushions we offer include a convenient zipper for opening and closing the cushion. Zippers are located on the back width. All cushions except for pinched hinge chaise cushions, pinched hinge chair cushions, waterfall seat cushions that have rounded backs or are completely round. Throw pillows also do not include zippers. All of our seat cushions, and bench cushions and deep-seating seat and back cushions that are made in a boxed edge construction include zippers on the cushion covers. Zippers are located on the back width. All hinged chair and chaise cushions are sewn shut and made without zippers.