lifestraw personalLifeStraw Personal is the classic LifeStraw straw with a filter in it. You use the straw to suck water up from, for example, a stream or the like. It then protects against bacteria, parasites, microplastics, mud and sand. And in fact, it removes up to 99. 999999% of all these things you don't want to drink. It's ultra light and durable, and actually weighs just under 60 grams! It comes with a lanyard you can wear around your neck. The membrane in the