If you're getting a water filter, I would avoid the Life straw and get the Sawyer mini instead - it's back flushable, has thread attachments and features a smaller membrane size.
Note: Not affiliated, just really like their stuff
Note: Not affiliated, just really like their stuff
Assuming you have access to transparent PET bottles and sunlight water filtration is basically solved.
I do have some lifestraws, but never had to use them.