Swig 20 ounce matte bottle has a silicone base to minimize slips and give you a quiet landing when you set down your bottle. Double walled, vacuum sealed copper coated insulation keeps drinks cold up to 24 hours and hot up to 12 hours so you can go all day. The stainless steel screw top cap features a flip ring for easy carrying and the rubber gasket ensures a tight seal for no leaks. And when it's time to clean your Swig bottle, slip it into the top rack of your dishwasher for easy cleaning! Matte outer finish Top Rack Dishwasher Safe Non-Slip Silicone Base Stainless Steel Screw Top Lid with Carry Ring Matte Finish Stainless Steel Bottle Double Walled Triple Insulated Vacuum Sealed Technology Condensation Free