All of our Duvet Covers come with our signature "French tail" end fold. This is a 40cm open flap which looks like a bottleneck. It is used to insert the duvet, and then tucks under the mattress at the end of the bed for a super smart finish. Buttons getting lost in the wash, or people who steal your duvet in the middle of the night, are a thing of the past. Available in Single to Emperor UK sizes, with all other sizes available through our bespoke service.