Retail Boxed * Memory Foam * Blue Cover * Ergonomically Designed To Provide Ideal Spinal Alignment And A Therapeutic Sleep Posture To Reduce Head Neck Shoulder And Back Discomfort * Can Also Be Used Under The Back Knees Or Ankles * The High Quality Memory Foam Reacts Fast To Provide Instant Relief And Comfort And Provides Slow Memory Foam Recovery For Longer Support * The Removable Soft Polyester And Rayon Cover Zips Off Easily For Machine Washing * Hypo-allergenic *