Zen Room Ultra Clear Strong Double Wall Glass, Insulated Thermo & Heat Resistant Design, Dishwasher and Microwave Safe, Made of Real Borosilicate Glass (12oz Set of 6)

I love these glasses and have them in nearly every size. However, for some reason this small size cannot handle a dishwasher. Any that I put in the top rack of the dishwasher came out with a leak in the double wall. I hand wash them now and they're fine. All other sizes are fine in the dishwasher with no leaks. As long as you hand wash, they're fine.I agree with another poster - they're super slippery when you hand wash! Have a sink pad to catch them WHEN they come flying out of your hands :)

It says they are durable, but they are made of two layers of very thin panels of glass with an air pocket in the middle. They broke easily within the first week. They are extremely light weight. That was the first thing I noticed when pick them up out of the box, because it surprised me at how light they were.

The glasses are great quality and exactly as advertised. The only downside is the bulb-shape, as it is slippery when hand-washing and feels like there is no way to really handle it. We used to have a tulip shaped version which were easier to wash.

I love these glasses because they keep my coffee hotter longer. The glass does not heat up on the outside, so it's not hot to the touch. I wash them in my dishwasher, top rack only. I love the way they feel... so smooth to the touch. And I love the way they look. They also keep cold drinks cold and you don't have to worry about condensation, so coasters are not needed. I think that these glasses are one of those small little luxuries that make life a bit more pleasant.

I bought a set of two. I used them for six months or so, then I hit one with an elbow and broke it. I'm definitely buying more.

These are our favorite cups for hot and cold beverages. It keeps the moisture from a cold beverage from getting all over the pace and keeps your hands from burning on the hot beverages.

what I liked about it was how they put it on a picture to make me think it was the thing to have. i ordered 12 of each size. 3 of each size came broken even thought the box clearly mark fragile. return for a refund. it took less than a month for the rest to follow suit.waste of money. stay away from this product.

These glasses are the perfect size for a smaller hand. They are (so far) dishwasher proof and have not gotten "cloudy" over time. They do not "sweat" so they do not need coasters. I love them and ordered a second set.

This are v ery nice glasses but were too big for my hands and I had to return them.