The flannel sheet is made of soft and very pleasant to the touch natural cotton fabric (100% cotton). The thick weave ensures durability and resistance to mechanical damage. Flannel is characterized by a high level of thermal insulation, which is why it is recommended especially in the autumn and winter period. The reactive method of dyeing the fabric ensures color intensity and durability. Thanks to the elastic sewn into the corners, the sheet will fit perfectly to the mattress. The sheet is intended for a mattress with a maximum height of 20 cm. Please remember that each computer displays colors according to individual settings and properties. Maintenance instructions on the label. Maximum washing temperature 40 °C. Parameter tolerance +/-5%.