Stay warm and cosy all year long with the Premium Goose Down All Seasons Duvet. Coming as a set, this duvet includes a 4.5 Tog and a 10.5 Tog which can be easily attached together to create a super warm 15 Tog duvet. Easy to attach together, both duvets come with plastic fasteners and button holes. The 4.5 Tog duvet will see you through warmer summer weather, lightweight and comfortable it will keep you cool. For spring/summer, use the 10.5 Tog duvet, slightly warmer this duvet will keep you warm all through the night. Then when colder winter weather comes around, simply attach the two together and create a super warm 15 Tog duvet. Each duvet is created with baffle box construction.