I got a "3M Peltor X5A" a couple years back as a "thinking cap": put on to think in thought-hostile environments. Works like a charm. Probably best 30 bucks I e

I got a "3M Peltor X5A" a couple years back as a "thinking cap": put on to think in thought-hostile environments. Works like a charm. Probably best 30 bucks I ever spent. For comms use a wind-proof mic on a headset boom and earphones under the X5A.