- Safe material: Our square-shaped foldable water cup is made from food-grade silicone for safe drinking. It is reusable and a healthier option, and cold-resistant for beverages of all temperatures. - Effortless portability: The foldable design compresses to half its original size, saving space in your backpack, bag, or purse. Its portable design makes outdoor use easy and convenient. - Large capacity: 600 ml capacity provides all-day hydration. The efficient design eases carrying, stowing, and travel, making it ideal for outdoor hydration. - Well sealed: Leak-proof sealing with a secure lid prevents leaks when closed. You can safely carry it in a bag or car cup holder and stay hydrated outdoors. - Use scenarios: - Hiking, camping, or outdoor activities where space and hydration matter - Travel or commuting by car, bus, plane, or train; fits in bags and car cup holders - Everyday hydration at work, gym, or school with a reusable option