The cut out shapes on the sides make the shoe quite airy. We were lucky enough that we had no rain until the end of our trip and we were done camping at that point. So I dont think it is because I have a big head. And had to take it off. I reccomend this seller because i at first used a different on who sent me just black twice and this guy got it right the first time. I found a test time for dac linerarity on QobuzWith volume at 118 of 120 on low gain its . Super comfortable, I used them as water shoes without having to walk around with a soggy shoe after the water or a smelly one because it was wet all day. I attributed it to hours of game-play with other games, but with Skyrim I unfortunately started feeling it about 45 minutes in. I got these when my Dostyles went out, because they appear to be the same headphones. It absolutely refuses to play SiriusXM.