Down and feather mattress cover. Provides firmness and a quilted feel that adapts to the curvature of your body. The filling is made of 10% down and 90% French white duck feathers, and the surface is made of 100% combed cotton percale, 230TC and down-proof, allowing the down to breathe and preventing the filling from escaping. Super soft. 1.6" deep and includes two elastic bands for a secure fit and easy placement. Firmness: 1650 g/m² Do not air dry, tumble dry at a low temperature.