"Yin-Yang" is a light, gentle, airy comforter. For this model, the selected white geese down of northern breeds having a high degree of elasticity are used. Natural down is characterized by lightness, airiness, high thermal insulation, the ability to "breathe". Goose down is easily compressed and takes the form of a body, enveloping with heat, like a weightless cloud. The cover of the comforter is a cotton-batiste of high density, which securely holds the down inside the comforter. The name of the comforter is associated with the interaction and relationship of male and female origins; the product is divided into two equal parts, which differ in the size of the cassette stitch and the weight of the filler used. The larger size of the cassettes implies the use of more filler. This is a great option for couples with different preferences in heat, as one side is much warmer than the other, lightweight. If you turn the duvet insert for 90°, it is possible to insulate the feet, leaving the upper part of the body cool.