I use Browning electronic ear-muffs. They don't press very hard on the head, but do insulate the sound. One important point for me is that, when walking in the woods on our Sporting course, I can hear the birds singing and the wind rustling in the trees... all part of the experience for me! And you can hear people talk, too. Before that I used custom molded ear-plugs - they work well, but no sounds of nature!
Cheers,
Roger
PS. I've shot for nearly 40 years with regular earplugs and ear-muffs - not deaf yet! I've only used the electronic earmuffs for the last two years.