Fred PORT-A-PINT Collapsible Beer Glass, Clear Pack a Port-a-Pint in your pocket and you'll be ready to knock one back at a moment's notice Just flick your wrist and the cup magically extends Once it magically extends, simply pour and enjoy Perfect for camping, festivals, parties and life on the go Comes with a handy storage case you so you don't have to worry about getting it lost or damage during your adventures