I personally don't believe you need to spend a small fortune.
I use the simple but, effective Mack's musician/audio foam plugs, they are 22SNR, way down the usual 36 I wear on my motorbike...they work for me.....the Mack's are Caucasian skin colour.
3M do ear caps, plugs on a head band, again way down on the SNR scale, the blue band and yellow ear cap is a little sudden though.
I'm wearing the Mack's for watching open mic nights now.