SureFire EarPro EP5 Orange Medium Sonic Defenders Max - "Full Block" Ear Defenders - 26dB of Noise Reduction - EP5-OR-MPR Orange Medium Pair Full-block design blocks out potentially harmful noise, providing 26dB Noise Reduction Rating (NRR) Soft, adjustable, triple-flanged stem provides secure seal in ear canal and all-day comfort Made from hypoallergenic medical-grade polymer that's soft, comfortable, and durable EarLock by SureFire design conforms to the ear's natural shape to "lock" earplug in place, ensuring excellent retention and a proper fit every time Low profile permits wearing with mask, helmet, or supplemental hearing muffs