I've been using these cups for quite a long time. I find that I have to be very careful with them or they will become damaged. Overtime the clear cups become clouded because they get scratches from the sponge during cleaning (I never felt safe enough to put these in the dishwasher) and I need to take the rubber/plastic piece in the lid out so that mold doesn't build up while drying. However, even though cleaning them is a pain and they don't really hold up over time they are a nice large cup and does not have condensation. These are kind of the point of a tumbler so I have to give them 4 stars. The only time one of these cup broke was when I accidentally knocked it onto a concrete floor which was my bad and not the cups.

My wife has purchased many of these to use for crafting and has never received a single complaint from her customers. We even have a few that we use on a daily basis that she customized. She bought this cup mainly because it has a clear, blank canvas for her to customize as she needs to, and the sticker that is included comes off with ease and some glue remover.

So far I am happy with this product. Put it in the dishwasher already and don't noticed any "leaking". I used them for hot and cold, and even with hot coffee the insulation is pretty good, tumbler just feels warm to the touch while keeping the content scalding hot. If they hold up and won't start leaking between the walls I will order more.

These work well as an economical double walled tumbler solution. Highly recommend hand wash only; temperature changes can cause the seal to break allowing condensation or wash water between the layers. This applies to using it for hot beverages also; it's rated for hot and cold use, but will eventually lose its seal. The plastic itself is durable, I have not had a problem with cracking, but again "“ this seal between the plastic layers is mediocre and will allow paper/condensation after prolonged use, a bang or bump and if temperature changes quickly. Another downside, this seal on the late works well however, the lid does not always easily read and fit correctly. The best case scenario is that it may travel or leak when tilted (which it may through the straw hole anyway), the worst-case scenario is this stress a misaligned late will cause in either applying or unscrewing it causing the seal to break. All that said, I've never had a cup break or fall apart, have never have one crack or leak liquid and even when condensation gets between the layers, the outside always remains dry. Beware, they are prone to stain with prolonged use with coffee or tea. Overall a good cup at a fair price.

These are sturdy and well made cups. There's nothing fancy about the design, although I haven't used the labels, which might make them a bit more fun to have around. The price is quite good for a pair of large cups, as most big box stores will sell single 16oz cups for around seven bucks for one. However, these cups aren't really 24oz. If you fill them all the way to the very top such that the lid can't be used, yes, they are, but that kinda defeats the purpose of having this type of cup. With the lid on and maxed out, they're really closer to 20-21oz of usable space. Still, nothing wrong with them and worth it for the price.