JessPad Memory Foam Seat Cushion Colorful Sea Fish Art Chair Pad with Ties Cotton Cushion Cover is made of Cotton Linen. Dimension: 16"L x 16"W x 1.7"H / 40cm x 40cm x 4.5cm (Approx) MEMORY FOAM Cushion insert, Soft and comfortable & full of elasticity. Hidden zipper design with the ropes, it can be fixed on the chair. The pattern is only on the front side. If you want to customize the size and pattern, please contact us within 24 hours