Ice Cool Blue Gel Memory Foam Topper contains 5.1 cm pure Cool Gel Memory Foam, which provides a very soft cushion, yet blue gels keep your body heat evenly distributed so that you always have a comfortable temperature to sleep through the night. Top knit fabric of the Blue Gel Memory Foam Topper is a special cool touch. Side mesh makes the topper very breathable. Anti-slip design bottom fabric keeps your topper on your mattress. With 4 corner elastic straps, the topper will be securely fixed on top of your mattress. It can be conveniently delivered to your door in a box with no contact needed.