The super king size duvet features an 80% duck down fill enclosed in an internal box construction that channels warmth evenly and prevents cold spots. Its 230 thread count cotton casing is breathable and down-proof with piped edging, helping to regulate body temperature for consistent comfort. The lighter 10.5 tog rating suits milder conditions, and the sustainably sourced fill carries Nomite certification for those with dust mite sensitivities.
