Rverie nature duvet the eco friendly duvet recycfill filling silicon polyester obtained from recycled bottles treated with greenfirst dust mite protection 100 organic cotton cover made of organic cotton certified by the control union label500 gm warm duvet suitable for cooler bedrooms 15c to 16c maximum recycfill filling made from siliconised hollowfibre allowing better circulation of air and reducing build up of moisture treated with greenfirst for protection against du