Duck feather: Made from 85% duck feather and 15% duck down. Super soft: Ultra-comfortable and soft. Warmer weather: Perfect for warmer weather. Summer duvet: Get a 7.5 tog summer duvet. Sizes: Choose from single, double, king or super king sizes! Hypoallergenic: Hypo-allergenic and machine washable! 7.5 Tog Summer Duvet | Living Social