Filling with upgraded microfiber polyester filler,great spring back ability,medium support.The cover is made of polyester. -Pillow insert size:18 x 18,45cm x 45cm. Unit weight:0.99lb/450g. -Gentle circle machine washable.Dry it in dryer or bask in sunlight would greatly help the pillow recover its fluffy shape. -The pillow is compressed and vacuum sealed in plastic bag for shipping purpose. -What you get: 2 x pillow inserts(18 x 18 ),12 month warranty our friendly after-sale customer service. Features: Filler material: 100% polyester fiber Cover material: polyester Unit weight: About 0.99lb/450g Unit size: 18 x 18in(45 x 45cm) Suitable season: Spring/Summer/Autumn/Winter Packing: Vacuum packing Washing instructions: 1 Gentle cycle machine wash 2.Do not bleach and iron 3.Do not dry-clean Please contact us if you meet any quality issues,we provide replacement and refund for our customers.