Symbol Myra Euro TopCustom Milled Cover Fabrics specifically chosen for durability and comfort. CloudComfort Layer Breathable, soft cloud like comfort layer provides cradling support. 5 Zoned Silhouette Foam Zoned to distribute the right amount of pressure relief and breathability across the entire body. 460 Foam Encased Open Coil Support System Open coils and foam encasement allows for increased airflow and breathability with a consistent support across entire surface.