Foam Ear Plugs Smooth, dirt resistant surface provides better hygiene Earplugs are easy to roll down for quick and easy fitting Tapered design fits comfortably in earcanals Soft polyurethane foam is hypoallergenic 3M 1100 uncorded foam earplugs feature soft, hypoallergenic foam and a tapered design to fit comfortably in the earcanal. Soft, uncorded foam earplugs that conform to the unique shape of each ear for excellent hearing protection and comfort.