Sea to Summit X-Mug 480ml, brand new, unused. It will be shipped in a size suitable for postal delivery. The following is the manufacturer's description: A mug with twice the capacity of the X-Cup, allowing for generous pouring. The rigid ring around the rim gives the cup rigidity, making it easy to drink from. It also folds quickly and compactly, and can be stored in the X-Series cooksets. Thank you for viewing.