Simms 32oz Headwaters™ Bottle is a double-walled, vacuum-insulated virtuoso that keeps beverages hot up to 8 hours or chilled up to 24. Premium food-grade stainless steel construction is 100-percent BPA free. A rugged powder-coat finish—with laser-etched Simms logo—eliminates sweating. And a wide mouth makes for easier filling, drinking, and cleaning. Dishwasher safe.