Insullation Tumbler Cup- This 30 oz insulated tumbler with lid and straw features triple layer, double wall vacuum insulation technology, keeping your drinks keep perfect temperature, all day long. Cold for up to 36 hours, hot up to 12 hours. Unique Design- Unique 2-in-1 Lid allows you to suck or sip as you wish, you can easily sip, flip, or pour. Grab the handle with either hand, then turn the lid so the straw faces you. Bottoms up! Never worry spills when hitting bumps on the road, or when taking it on a jog. High Material- Travel Mug is Made of premium 18/8 food grade stainless steel, plastic,silicone, which is easy to clean with large diameter,not easy to remain stains,leaving no odor, By combining these high-quality materials, we made sure our stainless steel tumblers will last a lifetime Ergonomic Design- The ergonomic, rotating handle makes it easy to take with you wherever you go. The 30 oz tumbler with handle feels sturdy in your hand, Fits comfortably in most c