Silicone material, safe and environmentally friendly: The foldable silicone cup is made of food-grade silicone material and does not contain BPA. Easy to clean, flexible and reusable.Easy to use: The upgraded foldable design saves space and fits perfectly in pockets, suitcases, does not take up space, and is very suitable for picnics, camping, self-driving trips and outdoor excursions.Heat resistance: The heat resistance of the foldable travel cup portable water cup is -30~220. It is dishwasher-safe and suitable for cold and hot drinks.Size information: The capacity is 170 ml. The top diameter is 8 cm and the height before folding is 7.7 cm. Foldable, compact and lightweight, suitable for home and outdoor use.Multi-function: The foldable silicone travel cup has good stability and is suitable for storage in a bag. It is very suitable for outdoor camping, long-distance travel, mountaineering, etc.