Organic Matelasse Windowpane Duvet Set. Full/Queen. White. A modern update to an heirloom weave, our matelassé is made of the finest long-staple 100% organic cotton. This duvet set is specially designed with three interwoven layers for a smooth hand-feel and subtle loft, offering the perfect balance of structure and softness. This dimensional fabric is backed with our relaxed Chambray fabric and topped with a modern windowpane stitch. MADE DIFFERENT. SLEEP BETTER AT NIGHT.