I have some which are designed to filter the noise so it is quieter. They're great because they come with 3 filters so I just choose what level of noise I'll be exposed to and whack on an appropriate filter.
I don't wear them all the time (mainly because I forget) but I find that there's not much difference between what you hear with or without them (except the volume of it) and the feeling of ear ache and ringing afterwards isn't there if you wear them - I like that! I would definitely recommend getting some, they don't look very obtrusive either, I don't think people have noticed me wearing them and if they have they certainly haven't mentioned it.