16.5 tog: Ultra warm and cosy - ideal for Winter. Winter duvet: Snuggle up with a winter duvet. 'Feels like down': Made of luxury corovin (polypropylene) that will provide irresistible comfort. Anti allergy: Filled with a goose down alternative hollowfibre, which has anti-allergy properties and is kind to skin. Sizes: Choose Single, Double, King or Super King. Machine washable: Machine washable at 40 degrees and can be tumble dried on a low heat. Winter Warm 16.5 Tog Duvet | Living Social