McKesson Composite Barrier Island Dressing, 4 x 4 Inch, 1 Box of 25 Jobst for Men Casual 30 40mmHg Retail boxed * Memory Foam Procedure Mask Ultra Pleated 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 * ProSkin Technology protects skin against prolonged wetness and keeps it fresh and clean 4 x 4 inch dressing with 2 x 2 inch pad Polyurethane film barrier creates an effective moisture barrier so you can shower or bathe