In the 1970s, conservationists began discouraging the disposal of cans and glass bottles by burning and burying them in the wilderness & in recreation areas. Eventually, some of those places responded with regulations and began forbidding such materials. Company lore has it that the Nalgene Company president discovered that his son's Boy Scout troop was using Nalgene laboratory containers for camping. Since then, the company has re-packaged and marketed the items for consumer sales through their line of Nalgene Outdoor Products. In 2018, Epic Water Filters & Nalgene began to discuss a collaboration between the Nalgene 32 oz wide mouth bottle and the Urban Filter system from Epic Water Filters (both made in the USA). We could not be happier putting our filter into the OG American made water bottle, the Nalgene 32 oz wide mouth.Why OG? "OG" back in the day used to mean Original Gangster although some younger people these days use OG as a quicker way of saying "The Original" - at Epic, we thought, what is more OG than the Nalgene 32oz wide mouth bottle? That is why we call it the Epic Nalgene OG. It's the original gangster. Reusable by Design: At Epic Water Filters, we believe in building products that never become obsolete. Our water bottles with filters are a perfect example. When you invest in the Nalgene OG, you get a modular system designed to grow with your family and perform for years to come. Whether you are trying to remove tap water contaminants or taking your Nalgene OG bottle on your next adventure overseas, the interchangeable filter system has you covered no matter where you find yourself. Our American-made and American-tested filters outperform well known filtration brands any day of the week. You'll notice some of our biggest competitors do not even publish test results, that's because their filters only remove bad taste and some chlorine (like your old water pitcher you've become so skeptical of lately).