Bronte: 36 oz. of pure hydration. Taste the difference in pure, pristine borosilicate glass. Infuse, chill, and repeat. Add ice, fruit, or your favorite tea. Your journey to a brighter, healthier you starts here. Borosilicate glass keeps drinks cold for up to 24 hours and hot for up to 12 hours. Covered in soft silicone with pre-printed hourly hydration reminders and motivational messages. A wide-mouth bamboo screw-on lid with a seal and removable inner metal filter. Easy to clean; dishwasher safe.