Hey Antonio,
thank you for your feedback and for taking the time to share your thoughts with us! You're right – with its 1-liter capacity, the bottle is designed to hold a large amount of water, and due to the thermo function, it naturally has a slightly larger size.
If you have any further questions or need assistance, feel free to reach out to us anytime at support@gornation.com – we’re always happy to help!
Sporty greetings,
Luca