The duvet cover set features a thoughtful fabric mix and practical design to enhance comfort and ease of use. Materials and warmth Front: microfiber fabric for a smooth, lightweight feel. Back: ultrasoft crystal velvet fabric for warmth and cozy comfort. This dualmaterial construction helps keep you warm quickly in cold weather while adding a luxurious touch to your sleeping space. Duvet cover design and use The duvet cover is designed to be shedding. Use it with a duvet insert in winter for full warmth, or without an insert in warmer months for a breathable cover. Suitable for everyone and appropriate for festivals and special occasions, it offers a comfortable, stylish look for any room. Zipper and corner ties Strong metal zipper allows fast, easy bedmaking and secure enclosure for your quilt, comforter, or duvet. Four corner ribbon ties help keep the comforter in place even if you move during the night. What you get Full size 4 pieces: 2 pillow cases (19' x 30'), 1 duvet cover (79' x 91'), 1 bed sheet (91' x 91'). Queen size 4 pieces: 2 pillow cases (19' x 30'), 1 duvet cover (79' x 91'), 1 bed sheet (96' x 98'). King size 4 pieces: 2 pillow cases (19' x 30'), 1 duvet cover (87' x 95'), 1 bed sheet (96' x 100'). Use scenarios Winter bedroom upgrade: the velvet back provides added warmth, while the duvet cover fits a standard duvet for easy layering. Summer room refresh: remove the duvet insert and use the cover alone for a cool, clean look without shedding. Guest room or holiday setup: quickly decorate a room with a coordinated, modern style that remains practical for frequent use.