This is a 16.5 tog luxury fine cotton, hollowfibre filled duvet. This extra heavy and warm duvet offers oustanding warmth. This duvet is constructed in a channel stitch with the highest of care to help evenly distribute and hold the fibre filling and Luxury Cotton fabric is used to finish it. To achieve maximum comfort, warmth, and loft; these duvets are filled with 100% supersoft hollowfibre, polyester. The fabric used on these duvets is a 100% Cotton, which helps keep the filling trapped and gives a silky smooth feel. This would make an ideal duvet for the cold Autumn/Winter nights. This product is carefully made in the UK.