Highest independently tested NRR. Extra-soft, low-pressure foam for comfort and fit. Tapered shape for easy insertion and removal. Non-irritating smooth surface. Hygienically packaged in biodegradable paper pouches. Longer length for easy fitting and removal. Look for the bright green color as a symbol of Moldex quality. 100% PVC-Free, like all Moldex products & packaging - for a greener alternative.