The Viscogel Infused D50 pillow combines the softness and comfort of viscoelastic foam with the coolness of gel, providing a soft and cool sleeping sensation. It molds to the contours of the head, reduces the sensation of heat and facilitates blood circulation. Wrapped in a 100% polyester mesh with Tech Dry technology, making it even more cozy, the fabric is treated with silver ion nanotechnology, which offers total anti-mite, anti-fungus and bactericidal protection.