Klean Kanteen Wide loop has an extra-wide opening measuring 2.125" for easy filling and pouring. Works with standard hiking water filters. BPA-free eco-friendly, doesn't retain or leach flavors, 100% stainless steel interior. Dishwasher safe, reusable & 100% recyclable.
Also available in a small mouth version (Loop Cap) which has become my favorite because the Olicamp Pot Grabber works perfectly to handle the bottle very securely when hot allowing easy pouring.