The duvet Wenus is filled with a high-quality non-woven anti-allergic . It is a combination of delicate, thin silicon fibres with the lumen having air collecting ducts which ensure high heat-insulating parameters, merging with fibres , giving the cohesion and the simultaneous of springiness and softness. It is also used in clothing as a filler to warming in winter jackets. Products with this raw material composition can be washed mechanically without the risk of losing of original properties. The filling have approval of the State Unit of Hygiene in Warsaw. Edges of duvets are decorated with the velour trimming.