You may also want to look into a white noise generator like a wave machine. While it technically adds noise, it's a dull sound that minimizes impact from outside noises- kind of like a sound jamming machine. Def
In the end I just went into a fishing/hunting place and got a cheap pair for 2 Euro:(Image removed from quote.)And they're great, after a few minutes you dont even know you're wearing them, total silence and total comfort exactly like what I was looking for and for basically nothing price-wise, thanks everybody.