Gold 13.5 Tog goose down duvet is the warmest winter product of the Penelope duvet collection. Its filling contains 90% Class 1 goose down. Goose down gives volume and softness to the duvet. 10% back goose down gives the quilt fullness and the desired weight. The fabric of the quilt is 100% cotton, down proof, Nomite licensed fabric. This Nomite licensed fabric does not remove the fluff it contains and does not allow the formation of house dust mites (mites), bacteria and fungi on it. 13-5 Tog- Very Warm Filled with 100% goose down. 70% down-30% back fluff 100% cotton- down proof fabric 220x240 cm- 1320 gr.