Clothing: There’s a reason why characters in military movies refer to socks so often — they’re critically important and often overlooked. We love Darn Tough socks because they’re wool and a lot more durable than other brands like Smartwool. Grab a boonie hat, too; they’re easy to throw in your bag and provide better protection than most other options.
We all know how important clean water is to our survival, and if you’re planning on bugging in at home, something like this is a definite advantage in cases where water supplies may get contaminated during a SHTF-type situation. Yes, you can try to boil water consistently to purify it, but if you have the money to invest into prepper gear that will help you out in the long-term, this is an obvious way to go with your money. APEC makes and manufactures these in the good ol’ USA – they’re high quality, and are pretty much the only brand worth talking about when it comes to reverse osmosis filters; immense value for money in my opinion. If you don’t think these will ever be necessary, you only have to look as far as Flint, Michigan for a cautionary tale.
Zombie apocalypse: Used by some preppers as a tongue-in-cheek metaphor for any natural or man-made disaster and "a clever way of drawing people’s attention to disaster preparedness". The premise of the Zombie Squad is that "if you are prepared for a scenario where the walking corpses of your family and neighbors are trying to eat you alive, you will be prepared for almost anything." Though "there are some... who are seriously preparing for a zombie attack".