Duvets sewn in diamond patterns or square boxes etc. – what are the differences ?
The type of duvet is crucially determined by the kind of stitching. A duvet is stitched-through in a certain manner to make the filling stay in place and permanently fix it.
Also, the way of stitching has an impact on the degree of thermal insulation. For instance, summer duvets are sewn fabric-to-fabric, intended to create cold zones.