Usage examples (36)

• The lining is a soft nylon twill covering a closed-cell foam that will not absorb moisture.
• Nicer and barely more expensive, disposable earplugs are closed-cell and can be cleaned and reused.
• They follow the bone structure of the eye socket, and the closed-cell foam gasket completes the seal.
• A 20-inch square of closed-cell foam cut from an old sleeping pad (to sit on) and a Mylar blanket with baffles that expand for warmth.