Healthy Material - This cycling water bottle is made of BPA-free, food-grade silicone, making it healthy and safe. It can easily withstand a wide range of temperatures, hot or cold. Leak-proof Design - This foldable water bottle features a leak-proof internal silicone seal, even when upside down. This allows you to easily store and carry it in your gym bag or backpack. Space-saving - The foldable water bottle has a capacity of 500 ml and folds from 21 cm to 13 cm in height for optimal storage and space-saving. Easy to Carry - This cycling water bottle is equipped with a handle for convenient transport. The silicone is unbreakable, flexible, and durable: the perfect companion for sports and travel. Versatile Use - This foldable water bottle is perfect for sports, mountaineering, hiking, camping, outdoor and indoor activities, and is also an excellent gift for women, men, and children.