The Klean Kanteen TKWide 12oz is a stainless steel drinking bottle that is perfect for coffee, tea, water, smoothies and many other warm and cold beverages. You can easily take this bottle with you which is why it is great for daily use, during hikes or while working out. The caps of the TK wide collection were improved. They are enhanced with the TK Closure design with an internal screw thread to make sure the thermos function works even better. Beverages stay warm up to 11 hours and cold up to 38 hours. In addition, the cap is enhanced with a rotating loop to make sure you can easily carry it with you.