FoFoCup Collapsible Travel To-Go Tumbler Cup - lightweight, reusable, foldable, 20 oz, pack of 4 Conveniently lightweight and compact for the outdoors and daily use An eco-friendly, reusable and collapsible cup that can be folded and unfolded thousands of times Safe for use with hot and iced beverages (Temperature tolerance: 32~248 deg. F) Made of 100% food grade Polypropylene (PP) and SGS certified to be free of BPA, Phthalate, and PVC Patented foldable design: Awarded iF product design and Good Design Best 100