this is a 20 ounce Aladdin tumbler.
it is plastic and says Mason on it and Aladdin, see pics.
it looks clear at first, but if you hold it up to the light, you can see it is soft pale purple.
real pretty.
it has 2 plastic walls to insulate and keep the drink cold.
i don't know if the straw is original. it has the thing on the end, but it still can come out of the hole.
i think it came with one that would not pull out, but this one can come out.
and the straw is short, see pics.
you can use any straw.
item is like new, though used a few times.
the straw is red.