Univers natural duvet warm plump light with proneem anti dust mite treatment 100 natural active ingredients this duvet with premium quality extra white goose down filling offers top of the range comfort guaranteeing you a truly comfortable nights sleep made in france cover superb cotton satin 139 threadscm by drouault filling 95 high quality down 5 extra white goose feather 300 gm goose down is a luxurious and exclusive fabric it is selected from the best european sources