Filling and Lining: 100% Polyester and 100% Polypropylene. Maximum comfort: Designed to deliver maximum comfort and rest with uninterrupted sleep all night long. Fabric: Polyester and cotton. Five sizes: Choose from a single, small double, double, king or super king. Mattress enhancer: Get a 5cm airflow mattress topper. Airflow ventilation: Features mesh fabric around the edge allowing air to ventilation the topper. 5Cm Airflow Mattress Enhancer | Living Social | Living Social