TECHNOLOGY: TempShield™ double-wall vacuum insulation helps eliminate condensation and keeps beverages cold up to 24 hours Color Last™ powdered coat delivers non-slip grip and lasting color without cracking or fading FEATURES: Pro-Grade 18/8 stainless steel construction provides durability and prevents flavor transfer Chug Cap lets you drink freely and is leakproof when closed Narrow drinking spout offers a convenient and controlled flow Wide mouth opening easily fits ice cubes Bottle fits most backcountry water filters Dishwasher safe BPA-Free Flex Chug Cap not intended for use with hot liquids Not for use on a stove, in a microwave, or in a freezer Hydration Capacity: 24 oz.