My issue with foam earplugs is that they're too good at attenuating. I end up wearing them partially inserted, which is ok as long as you're staying still. If you are at a concert, or you're eating, or you have long hair, you'll disturb them.
[1]: https://www.offshorenorge.no/globalassets/dokumenter/drift/s...
Those are great for the workshop, but they're flourescent green and pink. That makes it easy to see when someone's wearing them, which is good in a shop but usually bad in social settings.
They're super comfortable and they don't look weird like the neon yellow foam ones :) Before I always disliked wearing earplugs when I have to at concerts, but the ones from Loop I just wear anywhere I like that is too loud