These NEW 20oz Water Bottles feature the same great technology that Swig Life is known for, but with bigger and better features. Each Signature Swig Life Bottle keeps drinks cold up to 24 hours and hot up to 12 with its double-wall, vacuum-sealed copper coated insulation. The non-slip silicone base keeps your cups from tipping or making too much noise when you set them down. The powder-coated finish keeps your Swig looking fresh and is dishwasher safe!