Stanley 1913 IceFlow Flip Straw Tumbler 20 OZ

This tumbler fits perfectly in my car's cup holder. The rotating handle is great, and the straw flips up easily. Drinks stay cold for hours.

I like the design and the handle, but the straw feels a bit flimsy. Otherwise, it keeps my water ice cold all day. Would buy again.

I've been using this tumbler every day for a month. The lid is truly leakproof, and the handle makes it easy to carry. I love that I can use it with one hand. Perfect for my commute.

It keeps drinks cold, but the outside gets condensation when it's hot outside. Not a big deal, but I expected it to be more insulated. Still, it's a good tumbler.

For the price, this is excellent. The straw is easy to use, and it doesn't leak in my backpack. The rotating handle is sturdy. I'm buying one for my husband too.

The size is perfect for my daily water intake. The handle rotates smoothly, and the straw is convenient. Wish it came with a cleaning brush for the straw, but that's minor.

After a month, the insulation seems to have failed – my drinks no longer stay cold for more than an hour. I'm disappointed because my other Stanley products are great.

I use this on my bike rides. The handle lets me hang it on my handlebars, and the straw lets me drink without stopping. It's durable and keeps my water cold.

I've had many tumblers, and this one is among the best. The only reason not a 5 is that the paint can chip if you drop it. But it still works well.