Klean Kanteen Wide Mouth Bottle The 2.125" stainless steel threads work with standard hiking and water filters Made from healthy, recyclable food-grade stainless steel that is durable and reusable Dishwasher friendly and easy to clean - no special brushes required BPA free and member of the 1% for the Planet Extra wide opening fits ice, easy filling and pouring Compatible with most backcountry water filters Electropolished interior doesn't retain or impart flavors Safe, durable, highquality materials Cap creates all stainless interior