BYOC 
Bring Your Own Cups
 
These 550ml resuable cups are easy to carry around for work, school, camping or just about anywhere.  With it's metal clip attachment, it's a great tag-along.
 
Collapse and expand it to your desired size. Even works as a soup bowl for camping!
 
Removable parts make it easy for a thorough wash.
 
Pick your favourite colour. There's 13 sets to choose from.