From Marimekko, this duvet cover set features: 

• Duvet cover features a button closure with additional inner corner ties to secure the duvet in place
• Included shams feature an easy overlap closure
• Cotton
• Duvet insert sold separately 
• Machine washable for easy care

Twin duvet set includes:

• One duvet cover approx. 86" L x 66" W
• one sham approx. 21" L x 27" W

Full/Queen duvet set includes:

• One duvet cover approx. 96" L x 92" W
• two shams approx. 21" L x 27" W

King duvet set includes:

• One duvet cover approx. 96" L x 106" W
• two shams approx. 21" L x 37" W

Imported.