As for helmets. A FMA one from AliExpress is far cheaper as 95% of Amazon/Ebay airsoft products are simply dropshipped. I alternate between whatever impressionist helmet or patrol cap depending on how I feel enduring at an airsoft venue. I tend to use helmets far more often in CQB sites, where I've so happened to bump into walls and door frames lol. Outside of just looks, if looking for a helmet, consider the shell, liner, and suspension system to be optimised for your own use.