Whether playing or at school, adventurers can also quench their thirst with the Sigg Dinos drinking bottle. You can always see how much you've already drunk. And the innovative One closure also makes the bottle super comfortable in other respects: carry, open, drink, close and secure - all conveniently with one hand. The high-quality, reusable drinking bottle is made of transparent polypropylene. All materials are 100% recyclable and free of harmful substances such as estrogen-active substances and phthalates - for safe drinking enjoyment.