Molded plugs, and if that isn't enough protection, some Peltor muffs. I just use the molded plugs, but some people find there isn't enough damping of sound with them when shooting, due to bone conduction of sound, so Peltor muffs are the best I found, working for years in noisy environments. The ones I use while running a chain saw are the high visibility ones you see being worn on the tarmac in airports, and are the best damping, and most comfortable I have ever worn.