The Hydrologie Pillow was designed to stay cool to the touch while you sleep! The Hydrologie Pillow cover is made of a blend of breathable fibers, of which the thread is treated with a coating to have high specific heat capacity. You can actually feel the coolness as you put your hand on the cover. This fabric is fresh and specifically knitted for extra breathability & airflow and stays well ventilated. For our core materials for the pillow, we selected high density gel-infused memory foam with ventilation for one side to provided added coolness and support and a specially blended down alternative gel fiber for supreme softness for the other side; by combining these two materials, we created a reversible pillow of which both sides offer extremely cool comfortable support for the neck and head. The gel fiber side even has internal double baffle wall construction to keep the fiber in place so your pillow will hold its shape. The Hydrologie Pillow is covered with a removable zippered cover and has a 2" Gusset for added comfort and style; cover is machine washable for easy care. Hydrologie is inspired by the amazing Southern California lifestyle: beautiful beaches, scenery, awesome people and ocean breezes; it is all about staying cool, relaxing, and being comfortable while you sleep. Now you will be able to enjoy a cooler night's sleep with products that are cool-to-the-touch and incredibly comfortable. We use special materials that absorb more heat and are knitted for extra breathability & airflow to prevent heat build up throughout the night. Hydrologie is the complete cooling experience for a great night's sleep after a long day under the California sun or where ever you call home! - Color: white - Imported Product Measurements: - King: 18.5" x 34.5" x 6" - Jumbo: 18.5" x 26.5" x 6" Please note your order will be shipped directly from the brand. Orders cannot be shipped to Australia, Canada, Alaska, Hawaii, Puerto Rico or P.O. Boxes.