ChillowPLUS® with its Hydro-Soothe membrane underside, allows TWO-WAY cooling â€" top and bottom, dissipates more heat, is easier to wipe clean, & wraps! ChillowPLUS® uses Soothsoft® Technology with water to absorb and then dissipate heat back into the air producing a dry, natural, gentle cooling effect. With its one time activation, this nontoxic, non-gel and latex free product requires no power. While still soothing to sleep on, ChillowPLUS® is especially made for your active lifestyle. From bumps and bangs to bad days at the office, working out or working late, this design brings soothing comfort to everyday living. Soothsoft® technology is combined with a new Hydro-Soothe flexible membrane that creates cooling form both the front and back of this â€ause anywhere†pad. Soothe cramps, fevers, aching joints & muscles, Fibromyalgia, post surgery aches, sunburns, and any heat associated with heat or pain. Great for bumps, bruises, and overactive children. Included adhesive Velcro turns it into a quick wrap while optional Stick †N Grip feet add traction without preventing cooling. FLEX IT, WRAP IT, DRAPE IT anywhere you need relief. Benefits: Great for wrapping bumps and bruises Helps alleviate heat from Hot FlashesSoft cool comfort for cancer treatments Ideal for migraine and tension headaches Soothing cool for back pain and sports injuries Relieves sunburns & rashes Comforts tired, sore feet Features: Hydro-Soothe cool bottom Two-way cooling offers longer comfort Easy to clean with damp cloth Wraps and flexes Dissipates more heat Adhesive Velcro for wrapping Stick †N Grip feet for non-slip Materials: Vinyl top sheet; Flexible Vinyl bottom sheet; porous foam core Note: Fits standard size pillow. Pillow NOT included.