Convenient Carabiner Attachment: The included carabiner makes it easy to attach the foldable water bottle to backpacks， bags， or any other items equipped with hooks or loops. This foldable water bottle can be frozen and utilized as a cooler block， perfect for outdoor activities during hot weather. Squeezable， refillable， and exceptionally lightweight， this water bottle is the ideal companion for hiking， camping， and traveling.Made BPA-free with sturdy materials， our water bottle is safe for both kids and adults， promising long-term usage. It can reliably carry up to 0.7L or 700ml of water， perfect for keeping you hydrated.