Meteors® Uncorded earplug. Meteors® unique curved design provides exceptional comfort. The contours follow the shape of the ear canal which means less pressure at the smallest diameter of the earplug. Meteors® innovative undercut design affords a secure fit, all day long. The large base helps provide proper insertion, fit and removal. 100% PVC-Free®. Highest independently tested NRR TO NRR 33 for regular Meteors® and NRR 28 for Meteors®, small. Soft, slow recovery foam and contoured shape molds easily to the ear canal for all day comfort. The contours follow the shape of the ear canal which means less pressure at the smallest diameter of the earplug. Meteors® innovative undercut design affords a secure fit, all day long.