Princeton Wares Tea Tumbler Travel Mug Cup Double Wall Insulated Borosilicate Glass Large 14 Ounces For To Go Coffee, Tea Hot Drinks Includes BPA-Free Silicon Travel Lid (Orange)

So, I settled on this after an exhaustive search for something to drink tea and coffee in that wouldn't taste like plastic. It is amazing how hard that is to find. As others have said, the silicone lid tastes and smells bad, as do all plastic mugs to me. To make this work for me, I drink it until it is about an inch or two down and then bring it in the car with the top off. Drinking it with the top off, there is nothing but glass. The rim at the top fits in my hand well, and the insulation works well to keep the cup from getting hot. The coffee stays warm for a decent amount of time with the lid off too. This is the best option for me so far. If someone else makes a travel coffee mug that is all glass or ceramic and has a top that doesn't add a gross flavor please let me know. Also, the glass seems thin and pretty breakable, so we'll see how this goespros:- all glass- no plastic- glass itself adds no taste to drink- keeps drinks hot- rim and glass width fits in my hand nicecons:- lid smells/tastes gross- glass seems thin and may break easily (not sure yet)- lid isn't very spill proof

I'm really happy with this tumbler, as it lives up to the promises. The borosilicate glass allows strength without adding weight, and the double wall keeps hot coffee hot for about an hour, and it gets to lukewarm in about 2-3 hours depending on how full the cup is. I haven't timed it with cold drinks yet, though it does succeed in not forming condensation on the outside. It did form condensation within the double walls, which I did not expect, but I guess that's ok. The one thing I would change is to create a vacuum inside between the two glass layers.The silicone lid is a standard size, so if you have old lids from other to-go coffee mugs, they will fit this too, which is nice. I'm NOT a fan of the taste of silicone, so I use a narrow coffee straw. One more idea for the manufacturer would be to create a lid with a silicone seal where it connects, but borosilicate double-wall glass for the top where your lips touch to drink. That would be AMAZING.Considering the quality, utility, and the price, I'd say this tumbler is an excellent value, especially if you want something to double for both hot and cold use. Recommended.

The glass is very good, does a reasonable job of insulation though not as well as you might want--heat does conduct where the inside and outside glass meet. The glass seems sturdy enough.My main complaint is the lid. As others have complained, it smells quite strongly, and washing has not helped. It smells kindof like our dishwasher detergent, but I have tried washing by hand as well. If the manufacturer wants to send me a replacement I'd be happy to reconsider, but as of right now it isn't usable.

I love this cup! I'm trying to get away from plastic and to phase out my old travel mugs that started leaking, so I was looking for a simple glass tumbler that I can take along with coffee or hot tea on my morning school runs with the kids. This fits the bill perfectly! I love the simplicity of the design (I'm a designer myself and I love minimalist design), it's truly a beautiful cup that does its job right. The silicone cap fits very well and doesn't leak, but be careful not to fill the cup too much, as I did my first time, when some coffee spilled through the spout while driving (no biggie, lesson learned). Haven't had the issue when I kept the liquid line a bit lower (as shown in the product picture). Also, no problems at all after pouring super hot liquids (boiling water) in it. I only wish the lid came in more colors - red, gray or black would have been my first options. All in all, I'm very happy with this product and would buy more colors if they ever become available.

It's okay...The bad:1. The lid (floppy silicone) leaks when you have a full cup and tilt it at too great an angle. Coffee in my lap.2. If you are walking at a brisk pace (my entire existence) it can jostle the coffee and leak. Coffee on my shoes.3. Did I mention that the lid leaks?The good:1. Keeps beverages pretty well insulated (i.e. - hot drinks stay hot and cold drinks stay cold)2. No plastic-y taste when you are drinking hot drinks and therefore no need to switch beverage containers based on what you're drinking (this tea is hot-hot-hot-- not cold!).3. Good shape and size (people underestimate this until they buy something that doesn't hold enough liquid, won't fit in a cup holder, or makes it look like you have ridiculous carney-sized hands)4. Appears to be pretty good construction. I haven't dropped it off the roof, but it makes it through the dishwasher just fine.3-stars for the price, but the lid makes it difficult to travel with.

Love this! This has been knocked around a little bit and has held up well. The lid on mine seals well, but there is a slight rubbery smell that comes out once it's washed a few times. I find the double paned glass keeps drinks at an ideal temperature - it doesn't keep boiling liquid so hot that I can never drink it, but it doesn't cool so quickly that I'm drinking a cold drink by time I finish, so I find the temperature regulation perfect. It's very comfortable to hold - even if you have boiling liquid in it, the outer glass never gets more than a little warm. I don't think I would lug around this type of mug for my morning bus commute, but it's ideal to keep at my desk at work even when I need to walk around a little bit because the lid keeps it from spilling. Also, compared to other fancy glass tumblers, the price of this is on point.