Food grade silicone and nylon size:11x11x8.6 cm , folded height 2 cm Collapsible Design: Foldable cup that can hold up to 450 ml (15.2 oz) of liquid when expanded. Durable Material: Made of food-grade silicone, this cup is BPA-free and safe for hot or cold beverages. Compact and Portable: Collapses down to a compact size, making it easy to carry in bags or luggage. The size varies slightly depending on the measurement method.