Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: all the glass is metal?
Document: Love this travel mug. To improve it would be to have something on the bottom besides metal. When setting it on metal or glass it is loud and needs to be non-skid.
For the $20 price point, you can't expect a thicker metal or a glass liner. Just don't think that this will keep your coffee that much hotter than 99% of the thermos' out there.
this glass is the best of the world.keep the heat and cold for long time.very resistant and very nice
the color is not like the picture but I agree. the glass does not leak and keeps the cold for long
Excellent glass I like his size is very modern and practical and the amount is very reasonable for daily use
This is my second one and i love it, this brand is amazing and their products too!! !I love this glass and i used it for everything, is just awesome!! !
It's just what I expected, excellent glass to keep the cold, I have not tested with anything hot but apparently works fine.
excellent product .... I love my glass and I take it everywhere ... fully meets my expectations, maintains hot and cold
Recommend and secure the purchase, money well spent, very good good thermal glass, lighter than similar in their prices, excellent.
is an excellent glass, good product quality, the color is beautiful, I highly recommend it, great for travel, super comfortable and lightweight.
Answer: There is no glass in this mug.  The body is made of stainless steel, and can therefore not be microwaved. It has a colored finish on the body which would flake off if you put it in the dishwasher, so you must hand wash the body. The lid is plastic, and is dishwasher safe.