I have tried about 10 different kinds and the ones that work best for me -- by about a mile -- are the 3M 1100 [1].
They have a light coating that makes them "stick" just a little bit in the ear (but not uncomfortably). This closes sound gaps that exist with other plugs and makes them way more effective.
They have a light coating that makes them "stick" just a little bit in the ear (but not uncomfortably). This closes sound gaps that exist with other plugs and makes them way more effective.
[1] http://solutions.3m.com/wps/portal/3M/en_EU/PPE_SafetySoluti...