We can't help but enjoy pieces of tech out there that showcase some aspects of current generation technology, but then throw in a curve ball by including something a bit more "old-school." And, when it comes to old-school, a hand-crank is pretty much as old as it gets. In the case of SteriPEN's Sidewinder water sterilizer, it does make sure that you'll be able to keep your water safe to drink, no matter where you are. No need to worry about that power outlet or faucet. So that's a bonus.