I got this collapsible cup for traveling, and it saves so much space in my carry-on that it became a must-have item for me. I used to carry a tumbler every time I traveled, but its long, cylindrical shape took up a lot of space in my already-cramped carry-on.  

These collapsible cups from Stojo neatly fold into small disks and virtually take up no space. 

I bought both the 12oz and 24oz cups, and they are both very practical. I like to use the 24oz cup for drinks, and the 12oz one as a rinsing cup after I brush my teeth in a hotel room. 

Made of food-grade silicone, these cups are dishwasher-safe. You can also use these for both hot and cold drinks. 

Collapsing the cups is easy - you just have to press them down. 

They become flat and fit nicely inside my toiletry bag. 

The lid seals the cup thoroughly; therefore, the cup is leak-proof. 

The firm cup holder (shown on the right) ensures the hold is steady and stable. Because the cup is made of silicone, it feels a bit too soft to the touch, so the cup holder is a nice touch. 

Love these collapsible and compact cups!