1.Ergonomic Design This contour memory foam pillow is well-designed according to the special shape of the human body, which perfectly fits the curve of the head and neck, provides the natural spine support for your body and fully relaxes your muscles. You will fall asleep faster and deeper. 2.Memory Foam Our contour pillows are made of high-quality memory foam material which supports and molds to the cervical contour of your head, neck and shoulders to ensure a better sleep. Comes with a hypoallergenic pillow case, soft and smooth,highly breathable. Fully removable and MACHINE WASHABLE for easy cleaning care. 3.Breathable Outer and Inner Cover We have 3 types of Pillowcase, bamboo fiber, knitted fabric, 3D diamond plaid fabrics. They can speed up the heat flow inside the pillow and makes it cooler and more breathable, thus providing a better sleeping environment. 4.Comfortable and Safe Safe to use, healthy for all, and do not attract dust and bugs. There is nothing toxic about the pillow. IN CASE you experience an odor which is a “Fresh Foam” odor, it is not harmful. The odor should dissipate within several hours when unpacked and aired out. Specifications: Fill Material: Gel, Memory foam Size: 19.6x11.8x3.9x2.7inch/50*30*10*7cm Pillowcase Type: Gray Bamboo Fiber/Knitted Fabric/3D Diamond Plaid Fabrics/ White Bamboo Fiber Package include: 1 x Memory Foam Cooling Pillow(with cover)