Siesta Cups ReviewsSee store reviews

My last lid cracked, and I love my 20 Oz. tumbler so much that I went in search of a replacement and found it on Siesta's website. I love this lid so much! Unlike the original lid, the slide is tight, and has a silicone pad that when closed, is virtually leakproof. The lid itself fits snugly inside my tumbler, with a high quality rubber gasket, so it's secure. Though it's not advertised as such, I even flipped my full tumbler upside down and got no leaks! This is a high quality replacement that ...

Pretty decent cups. I like the 30 ounce size but there are a couple of things that could be better. First, the gel chips (or whatever is in between the two cup walls) are settling, leaving an opening where there's nothing but air insulation. That's resulting in increased condensation on the cup, even now as our humidity is only 42%. Second, the lid does fit snugly, but you have to watch the rubber seal when you remove it and replace it. The seal has a tendency to roll some in the channel. Yo...

Pretty decent cups. I like the 30 ounce size but there are a couple of things that could be better. First, the gel chips (or whatever is in between the two cup walls) are settling, leaving an opening where there's nothing but air insulation. That's resulting in increased condensation on the cup, even now as our humidity is only 42%. Second, the lid does fit snugly, but you have to watch the rubber seal when you remove it and replace it. The seal has a tendency to roll some in the channel. Yo...