Oasis Stainless Steel Tumbler

I love this tumbler so much! The color is beautiful, it's sturdy and well made, and the straw mechanism is amazing! I don't why I didn't buy one sooner. Worth every penny

Not spill proof

I have noticed that my cup will be sitting on a table, completely closed and for some reason liquid seeps out the top. Almost like it’s being suctioned out. I have a picture of it allows me to post it with my review. It’s very disappointing as I can’t trust this to be spill proof as advertised.

Keeps liquid cold

I love my Ello tumbler with hidden straw. Never leaks and keeps everything nice and cold. Now I am buying another one for my daughter.