Clima Downa Duvet 503 Grams. It is a cool product with a heating level of 2 out of 5, thanks to its 90% Goose Down Filling and Outlast Holy Fabric with Climate Balancing Technology. However, it can be used in heated homes in summer and winter because, thanks to its technology, it provides a comfortable sleep in any environment without sweating or feeling cold. Cotton Fabric is 100% Cotton with Nomite Feature, Lint Proof. Nomite certificate guarantees that it is suitable for people with dust mite and house dust allergies.