 |  | 3M 1100 Foam Ear Plugs
(NRR 29) These are the stiffest of the poly-urethane foam plugs. For those who like the feel of UF, but want the stiffness of PVC (which makes insertion easier), the 3M 1100 is a good choice.
| |  | | 3M 1120 Soft Foam Ear Plugs
(NRR 28) 3M 1120 Soft Foam Earplugs feature a flexible design that allows the plug to conform to the wearer's ear canal, enhancing fit, and they are made of softer foam for lasting comfort.
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