Manufactured from a micro fiber that has down feather effect. Conducted tests reveal that the heat dissipates after 2 minutes completely. Suprelle® Memory pillows ensure maximum relaxation in neck muscles and ensures ad resting sleep thanks to its evenly distributed pressure. The air permeability of the fabric used is reduced by 20%, and when pressure is being applied upon, it slowly retakes its shape. This creates a visco-elastic effect. Provides perfect volume, softness and hygroscopy. Product Features Manufactured from microfiber fabric. 1050 gr special micro particle has fibre filling. Has visco-elastic effect. Transfers heat and humidity. Product size : 50x70 cm Washing Recommendations Hand wash only. Do not bleach. Do not machine dry. Do not iron. Dry-cleanable.