This folding water bottle is made from food grade silicone material,which is toxic free,you needn't to worry about your health when using it.Silicone water bottle is designed with wide mouth that makes it easy to clean the interior,bottle is thick and durable,better for hold.And the folded water bottle is safe for both cold and hot beverages.Innovative design water bottle is a secure seal and leak proof,unlike other bottles that are fragile or deformed.The unique design creates a stunning look sure to grab attention and start a conversation.The compact water bottle is lightweight and flexible,can fold for saving space,perfect for outdoor activities,like camping,hiking,traveling,and it allows you hydrate yourself at any time.Welcome to inquiry.