Durable, double-walled construction and high performance vacuum insulation keeps beverages hot up to 6 hours and cold up to 24 hours.
- Reusable, recyclable, and easy to hand wash
- Made of 18/8, food-grade stainless steel, no liner needed
- Slim design fits in most cup holders
- Extra-wide mouth: 2.125" diameter
- No BPA, phthalates, lead, or other harmful substances
- Works with standard backcountry water filters