Howard Leight® SmartFit™ Reusable Earplugs: Corded, NRR 25dB, 100 Pair/Box

SmartFit senses the contours of your ear canal and adjusts its shape for an ideal fit. SmartFit uses advanced materials that respond to the body heat inside your ear. As the plug warms up, it takes on the shape of the surrounding ear canal – and it stays in that shape until you remove it. Unlike traditional earplugs which can irritate over time, SmartFit actually feels better the longer you wear it. HearPack® Carrying Case protects plugs when not in use.