100% Polyester Soft Micro Fiber Quilted with 700-850 GSM siliconized filling inside, made in all Mattress sizes from single—Super King, specialized technique to maintain its recovery and comfort durability. This heavy-weight mattress Topper Vacuumed pack provides additive comfort to the user. 4 corner Heavy elastic bands attached on the bottom which make it tight fit with the mattress and it gives noise free feel to the consumer.