The Swiss Comforts Bamboo Memory Foam Sleeping Bed Pillow is constructed with a 100 percent memory foam core and a removable shell/cover is constructed from high-quality Rayon made from natural soft bamboo fiber that provides a smooth surface This pillow keeps cool on all sides and all over the pillow. With a hand-crafted 3D mesh gusset all around for added durability, it naturally adjusts as you change positions throughout the night. Pure luxury allows you to sleep better. It does not keep dust and unpleasant smells to ensure a healthy sleep.