Made of 100% cotton - a natural and durable material that becomes softer with every wash. Cotton is a soft, natural material that breathes, absorbs moisture and feels comfortable against your skin. The tight percale weave makes the fabric very durable and resistant to pilling. It has a matte surface and is wonderfully crisp, soft and cool to sleep in. The buttons keep the duvet in place. Pillowcase with envelope closure. Designer Emma Hagman