Made with 100% Siberian goose down which is wonderfully light, soft and warm. The large and lofty clusters of pure down offer exceptional insulation. The Nomite™ mark means this duvet is suitable for people with dust mite allergies. Warmth Without Weight Down has a naturally airy and open structure that traps heat, so it gives excellent insulation while being much lighter than feathers. This means you feel perfectly warm, without being weighed down. Nomite™ This allows people with dust mite allergies to enjoy natural bedding. Following a hygienic washing and high-temperature drying process, fillings are then sealed in a tightly woven fabric cover which acts as a barrier against dust mites. Made at Herbert Parkinson Our high quality duvets and pillows are made by Partners at Herbert Parkinson, our textiles company in Lancashire. Much of our John Lewis bedding, made to order and bespoke products are made there too, and have been since 1953. All of our natural bedding suppliers provide us with a guarantee that their feather and down is sourced only as a by-product of the food industry. In addition, they're monitored to ensure they practice the highest standards of animal welfare. Find out more about our animal welfare policy . The box packaging of this product is fully recyclable. It contains material originally delivered to us as transit packaging, which we've recycled, here in the UK, to make into a new box for your duvet. Have you thought about a new pillow? Shop here .