After shaking and one hour storage time without packaging, the polyester fiber deployed in the interior of a little more and the bed looks a little fluffy. The diamond quilting and the side seams are working well and there are no loose filaments. The ticking is made of slightly shiny cotton. The weave is so dense that no fibers emerge from the inner life.
Store at room temperature of 16-17 degrees, as at night with the windows open there in our bedroom, a duvet must have been reasonably warm and since I was only a little skeptical because the Thinsulate so light and thin looks like a summer bed. But I was pleasantly surprised. Warm, soft and cuddly it feels under this blanket and I feel very comfortable among them, especially because no heat accumulation. When you sweat, the bed absorbs the moisture and passes it, as in sports performance apparel to the outside. Thus, the ceiling feels comfortable at any time to warm and dry.
My conclusion: A well-made thin and light duvet which has completely convinced me with their high sleeping comfort.