Key Features:

SmartSeal™ design ensures a near-custom fit

so you can actually carry on a conversation while remaining protected in a high noise environment

Twin headband design helps reduce heat build-up

ISOtunes Replacement Triple Flange Silicone Tips (5 pairs) upsell_copy-of-macks-slim-fit-smaller-soft-foam-ear-plugs-nrr-29-50-pairs Key Features:ISOtunes Triple Flange Silcome Replacement Eartips offer comfort for non protective use. Replacement Eartips are sold as individual packs that include five pairs of eartips. For regular users, ISOtunes recommends replacing each pair of eartips every 1 3 months depending on the frequency of use.