Completely cancelled the noise! I am always in search of great quality plugs because I go through them so often. Band across bridge of foot started to fray just in one month of wearing. In terms of how it fits. This is my second protective case, not from this vendor, but I wanted one with a clip, which my first one didn’t even have a place for a clip. I am lady with an average size head and usually wear a medium size baseball type hat (slightly adjusted). She was so surprised I ordered them. The sound is loud too! it’s bc im old and I had to ask my son “why are these things falling out?” And of course he showed my how to properly fit them inside my ear. The expanding feature is great.