3 duvets in 1 - Use the 4.5 tog for summer, the 9 tog for spring and autumn, or clip them together for a cosy 13.5 tog duvet. Generously filled with ethically sourced pure 80% goose down & 20% feather, this king size quilt adapts to every season for year-round comfort. Breathable Cotton Luxury - Encased in a premium 300tc jacquard cotton cover that feels cool and soft to the touch, this king size duvet promotes airflow and helps regulate your body temperature - keeping you cool in summer and cosy in winter. Baffle Box Construction - Designed with box-stitched baffle walls that keep the natural fill evenly distributed, this cotton duvet stays plump, cosy, and balanced - no clumping, no cold spots, just lasting comfort night after night. 2-Year Quality Guarantee - Our goose down duvet is made in the UK using down and feather that are a natural by-product of the food industry - never live-plucked. Backed by a full 2-year guarantee for lasting comfort. Easy Care - Snuggledown duvets are easy to maintain. Simply pop your winter duvet in the washing machine at 40°C and tumble dry on low. They're made to stay fresh, lofty and comfortable - wash after wash.