Most Essential
LifeStraw Personal Water Filter
No matter where you are, you will always need clean water to drink. Even if you think the water near you in a stream, spring, or other body is safe, it's better to be cautious. After all, the last thing you want is to find out it's contaminated!
The LifeStraw is a portable straw you can use to filter and clean water of "99.999999% of bacteria (including E. coli, salmonella), 99.999% of parasites (including giardia and cryptosporidium), 99.999% of microplastics, as well as sand, dirt, and cloudiness." Now that's impressive.