Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Do these glasses sweat, even a little? That would be a deal breaker.
Document: Just as advertised! These glasses do not sweat and keep the ice much longer. Since they are glass and not plastic;  they continue to look great and clean up nicely. They have been run through the dishwasher without a problem.As others may have said, they are a little thicker at the rim -- so they feel different when drinking. Not a problem for me. If they should get broken I would definitely repurchase these tumblers.
I have to pour some out to put in my spoonful of canned milk and stir-- waste and another step that would not occur if they did indeed hold that extra 2oz claimed. Almost a deal breaker but functional.PROS- That having been said, the glasses are sturdy and effective coffee mugs (thus, the remaining 4 stars).
These glasses hold around 14 ounces, and they are about 3 inches in diameter and 6 and a half inches tall (high). They are double walled, and it feels (and looks) reasonably heavy duty. They are not the fragile little glasses I have purchased before from other venders, these feel like they can take some abuse (but don't drop them on a hard floor; they will easily break). Ok, so what's the big deal about them?
My first double-wall tea glass was too tall and thin, and just a little too large at 20+ oz (even though it kept my tea warm longer than a regular mug, my last several sips were often tepid). When that broke (while I was struggling to clean the hard-to-reach interior bottom), I replaced it with 12-oz Bodum glasses.
Just received them this morning and they seem fairly sturdy. I'm most impressed with their thermal ability, even keeping hot liquids at temperature and very little heat transferred to the outside of the glass. They are rather narrow, making it difficult to clean them without a brush. I don't have a dishwasher, so that won't be a factor. Assuming they don't tip over and break easily, I think I'll be getting a lot of good use out of them.
Bought a half-dozen of these and less than three months later, they are all gone. I am not a klutz! I have glassware that has lasted for a decade or more. But these seem to break so often and so easily that I am starting to suspect that they're suicidal, leaping off the counters to their own demise.And when a double-layer glass shatters, you have double the broken glass to deal with.I would never buy them again.
I bought these cause I like my beer in a glass. These will hold a full can or bottle, with room for a head.These are just a little big for me, I later bought their 14oz. glass, which I prefer. I guess if I had bigger hands, they would be perfect.
I bought these hoping for a nice summer glass what would keep things colder however once I got them really didn't like the look or feel. It's not worth returning, but I don't think I will use them much as it's kinda like drinking out of some kind of candle stick holder. (My wife thinks it funny...which make me want to use it even less :-)  )  Maybe I will use it as a candle stick holder.
I ordered two sets of these double-walled glasses. They do keep drinks cold longer than the plastic glasses, but they do sweat a bit.
The outside of the glasses don't sweat when putting iced tea in them as well as keep your drink cold for a long period of time.We really like these glasses and will buy more in the near future.
Answer: Yes, not as much as regular glasses, but they do sweat.