Furniture grade plywood frame construction 18mm @ 11 ply & 18mm @ 14 plyHardwood Plywood, Mortise and tenon frames with glued joints and corner blocks, CARB certified, promotes stability, durability & longevityLeather features distinctive design and luxurious feel.Superior individual pocketed coil springs in seat cushion, encased in foam padding, wrapped in Dacron with a feather blend topperHigh resilience seat foam for superior durability and comfort.Medium seat density.