This Snuggledown Freshwash Anti Allergy 4.5 Tog Summer Duvet is specifically made with a specialist anti allergy hollowfibre filling to help reduce the build-up of dust mites, bacteria and fungus to help keep allergies at bay. The 100% cotton cover is naturally breathable, providing a fresh sleeping environment that keeps you cool and comfortable all night long. 100% Cotton100% Hollowfibre40° Machine WashMade in the UK