There's a reason the name is synonymous with water bottle, just like kleenex tissues. Since twinkies are discontinued, I'm pretty sure Nalgene bottles are the only things left durable enough to survive nuclear winter. I got my hands on the BPA free version, which is all well and good but c'mon, I'm smoking a cigarette at the moment. Perspective. Really though, bomb proof, some filters can acctually screw onto the bottle so no water spills. Most importantly MADE IN USA!!!!