They do NOT keep drinks cold for 20 hours. I have tried ice and without ice. Ice melts in minutes and drink is soon room temp. Very disappointed considering the cost

These mugs really work.. at least on cold drinks.. I was actually surprised how cold my drink still was almost 24 hours later, yes 24 hours later.. My daughter loves hers also.. always takes it with her even while working.. We both love them..

This does not fit in my cup holder, which is the reason I purchased. I like the handle, but the lid prevents the straw from being in a good position. We’ll see if how well it keeps ice, this is my first time using.

These are nice and they are $10 cheaper in the store. I would have given them 5 stars if they were the same price as in the store. Not fair for those that are homebound.

I love these tumblers! They fit perfectly in my car, and the handle on top makes it so easy to carry around while going for walks. This is the only thing I drink water out of!

I like that it’s a 40oz, but does NOT keep ice for long at all. I filled it with ice and a drink, with in two hours there was 1/3 ice left. Definitely disappointed with this purchase.

LOVE these cups! Better than Stanley as the base is slightly wider so they don't tip over so easily, The lid is absolutely leakproof when closed and they are easy to handle. Keeps liquids cold and LOVE the mauve/green set I got.

holds a lot

These are Great!

Luv them!