Collapsible Silicone Water Bottle with a hand ring for you to carry around.E-senior Water Bottles are made of 100% food-grade silicone,free of BPA and other harmful leaching chemicals.Not only for travel, but for everyday activities such as hiking, camping,commuting,exercise,road trips,outdoor events,and school.Collapsible Silicone allow the bottle can easily be rolled up and squashed down when space is tight.