Plush, multi-ply cover design drives moist heat toward the body for maximum effectiveness. Joint-specific or multi-use shapes for a snug, secure fit, with a wide elastic strap to hold heat in place while relaxing or during regular activities. Patented non-allergenic fill does not leak, smell, decay or encourage fungus growth, and has a special porous surface to trap the maximum amount of atmospheric moisture. Mitt is filled with two soft gel packs that can be heated or frozen, to surround the hand with either hot or cold therapy. Features The moist heat zone is held snug and secure in place by the wide elastic strap with velcro closure. Non-allergenic Crystal Fill won't leak, develop unpleasant odors, or allow growth of mold fungus. Moisture Absorbing Fill crystals have honeycombed surfaces to absorb the maxiumum amount of moisture. Outer multi-ply fabric provides Vapor-Barrier Cover. Cloud-soft fleece provides comfortable cover, and cradles painful tissues in soothing comfort. 1 Each / Each