Missoula is a unique 540 ml double wall stainless steel coffee tumbler that is equipped with a re-usable straw. Supplied in recycled boxes, sales of Missoula contribute towards Water.org making it a great sustainable gift. Operating in 11 countires Water.org provides millions of people access to safe water and sanitation. Providing 5 hours hot and 10 hours cold storage, this item comes with a straw cleaner to ensure utmost hygiene.