Collapsible Coffee Cup - iGreely Silicone Folding Cup/Mug Sport bottle with Lids - Foldable & Portable & Lightweight Travel Cup for Outdoor Camping Hiking - BPA Free (Light Blue)

First, I like how the cup collapses in two stages. If you want a squat coffee cup (like the ones you'd typically get for a small Starbucks coffee), you leave the bottom stage collapsed. If you want a tall cup, like a grande coffee or medium soda, you expand out the middle and the bottom sections. Also, what's not clear is that you can pull off the two outer white rings (the one just under the lid and the one in the middle). All components can then be easily washed (I put it in the dishwasher with no problem). You're left with the two white rings, the lid, and just the silicone "shell" of the cup to wash. Super easy to clean and it actually gets clean. I've had a ton of travel mugs that were leak proof but got filthy because their mechanisms were complex and hard to get into. I used the mug on a very long drive and it was great. Easily fit into car cup holders (on middle console and in the door cup holders). One point is that when drinking from the small hole in the lid, the sides do suck in a bit. At first that seemed a bit funny but it works well and snapping the silicone tab into the single hole provides a strong, and best as I can tell so far, a drip-proof seal. The only thing I would mention is that the cup can stand up on its on when fully extended on a flat surface. That being said, the bottom is silicone, flexible and has slightly rounded edges. In most situations that's fine but banging a table or desk hard could knock it over. Don't really see that as a big negative given its intended uses.

Love this cup. It’s super flexible which makes it very easy to pack away in my tiny cabinets. I also brought it along on a car trip recently and stored it in my glove compartment! It’s very easy to clean because of the material! I haven’t had a problem with it collapsing like I have with other tumblers like this one. It’s very sturdy so at first getting to collapse is a bit hard but after some use it folds easily. Great buy!

I bought this for weekend work events I travel to. I've been testing it out in the office for a couple of days.Pros:Really good volume (a Keurig set to a 12 oz beverage and with substantial milk added still has room).The white plastic "sleeve" around the middle is perfect for where to hold the cup and have insulation from the beverage temperature (holding at the silicone for a hot drink is too hot to hold for long).Was actually able to write on the white sleeve in a permanent marker to indicate it was my cup, which is useful at the kind of event I will use it at.Collapses to the perfect travel size and has carbiner to hook to outside of bag to reduce space use.Tab to keep drinking hole from spillingLight weightGreat design ideaCons:Despite a screw on lid, not leak proof :( (biggest issue)Can be difficult to reexpand if fully collapsedConversely, difficult to keep fully collapsed unless you squeeze out air and button the drinking hole closedRidges make it less easy to just rinse out.TOP HEAVY - with the lid on, and filled above the middle sleeve line, it gets wobbly. I am concerned about this, already caught it once. This would be less concerning if the screwed on lid were leak proof (luckily, removing the lid helps stability.I really like the IDEA of this cup - I may try other brands to see if there is a better option.

The media could not be loaded.  This little cup surpassed my expectations.I was able to carry hot coffee in it without burning my hand.It has a sturdy plastic "sleeve" in the middle, so the cup stays stable and does not squish when you hold it (+ heat protection)It is space-saving, because you can just collapse it in a very tiny state after you have finished your drink.What was the most amazing surprise is that it is very leak-proof, see the video attached (I tried seriously hard to make it leak!)

Great to use for traveling! I practically live in hotels so being able to use this in my rooms instead of the paper cups is great for me and the environment!

Love the idea of this travel cup however I bought them for hot tea while traveling. When you have the cup fully open and pour in boiling hot tea the sides collapse. The sides are very flimsy and the solid ring to hold the cup is 2/3 of the way down the cup which is not in the best place for my hands. The top is also hard to drink from as the opening is less than a 1/4” big.

I received my collapsible cup and absolutely love it. First, it is attractive, compact, lightweight and just the right size. I like the portability and the ease of opening and collapsing. This is a terrific cup for a child's lunch box, travel to work, or keep in the glove compartment of your car. I would definitely purchase this item again.

If you buy this for carrying your coffee, save your money. The heat from the coffee makes the cup unstable. I did not have any issues otherwise. I do like that it can be different sizes.