Best Linen Duvet Cover by Rough Linen Cypress Linen 1800 Series 3 Piece Aqua Duvet Set Aqua Duvet Cover Etsy Dusty Aqua Linen Duvet Cover Super King aqua duvet cover Elegant Home Design Ideas From Interior Decorators. Pamper yourself in this luxurious soft washed linen duvet cover and enjoy super soft bedding made from pure linen, which is the oldest textile in history. Made from the highest grade of flax fibre produced in farms in Europe, this pure linen sheet is so durable that it can be made into an heirloom. Change the appearance of your bedroom by simply replacing your current duvet cover with this soft washed duvet cover in the glorious hue of aqua. This listing is not including pillowcases.