Lumex Lightest Foam Gel Overlay 42x80x4 Marketing Bows chemical ice pack and plenty Report Covers chemical ice pack and plenty of regular Features a comfortable topper with a higher density base foam Features a specialized Dura Gel™ center layer surrounded by comfortable foam layers on the top and bottom of the cushion The cover is a 600 denier nylon with a fluid resistant backing to provide excellent durability the overlay is effective in any bed position Our non aqueous gel will not migrate or leak like water based gel products Overlay delivers same consistent results over the lifetime of the product Light weight feature reduces shipping costs Cover is fluid resistant thereby dispersing critical weight over a large surface area Non migrating gel is engineered into a high density 2"