Try this link
I only have a Yeti cup that I got a week ago.
I feel so much healthier and drink so much more water. It keeps the Ice cold for hours and hours. Even out in my hot car between trips.
I did buy a knock off from a store I frequent, but it works just as good as the SO's real Yeti he bought from Amazon.
And mine has a lid that closes, so it doesn't spill when you are walking with it (and it's green, obviously a clone)