This is a luxury anti-allergy 16.5 tog extra warm polycotton hollowfibre duvets. The extra high tog rating seperates this from other duvets as it offers the highest thermal warmth during winter.The duvet is made of up anti-allergenic hollowfibre, the duvets are constructed in a channel stitch to help evenly distribute and hold the fibre filling and a cotton blend fabric is used to finish it. Each strand of anti-allergy hollowfibre is perforated allowing moisture to flow away from the body and also allow an easier airflow as you sleep. This would make an ideal package for the Autumn/Winter nights. This product is carefully made in the UK.