I refuse to spend money on a Yeti cup. Too expensive! This tumbler does a great job of keeping things hot or cold for hours. I don't need something to remain cold for 12-24 hours. This is a 20oz cup not 30oz. 20oz is great for hot drinks too. Skip the status symbol of the big ticket cups and get one like this that functions well and is a reasonable price. The lid is plastic and fits tightly. I think that it could come open if dropped just right. If you have stronger requirements to protect your liquid, you might want to find a cup with a threaded lid.