great stainless steel portable outdoor travel camping folding andcollapsible demountable cup with keychain This folding water cup is a suitable for the travel, hiking, camping, outdoor, fishing, mountaineering, and other outdoor activities and Concerts Not only It is fun, but extremely practical There are two capacity you can choose An for ideal accompaniment to a hip flask, the fold away cup makes it much more to enjoy a tot of warming brandy or while you ' re out and about in chilly weather This product is not insulated because of the thermal conductivity of stainless steel Do not use a cup to drink overheated drinks