While the foam type are very effective, but after an hour or so my ears ache from the constant pressure. I use the molded type. They work well.
Using muffs over plugs is a bad idea if you are in the company of others. I do a lot of shooting, high power and var. shotgun, and several times I have witnessed someone with plugs and muffs that could not hear range commands or cautions, and thereby created dangerous situations on the firing line.
Try plugs and muffs with amplified listening and activated sound canceling for loud noises.
Or possibly percussive ear plugs, either electronic or mechanical.