Add personality and comfort to your outdoor patio furniture with this outdoor seat cushion. Its polyester cover is water- and fade-resistant, so it holds up during rain or shine. We love that this chair pad comes in a variety of color options, so it’s sure to fit your style. This square seat cushion is 21″ x 21″ with a 4″ thick polyester foam padding. Plus, it has two ties in the back corners, keeping it from blowing away on windy days or sliding while you’re seated. ARDEN Cushion Color: Sapphire, Cushion Size: 4″ H x 21″ W x 21″ D