Cover material: Natural Wool Material: 100% natural wool front, cotton back with a hidden zipper Inserts are not included Handwoven pillow cases Colours: Cream, Black, Grey, Green Inserts Size: We generally recommend using inserts that are 2" larger. For example your 20" X 20" pillow cover, you'll want to use a 22" X 22" insert. This will ensure that your pillow looks firm and plump