This set of 1 water bottle from Zoku is vacuum insulated and makes sure that cold beverages stay that way for up to 24 hours and hot beverages do not lose steam, maintaining heat for up to 12 hours. Designed to take a hit, this double-walled bottle remains easy to carry with a removable paracord. The premium quality finish makes it durable and scratch-proof. It is BPA and phthalate free as well. It has a capacity of 500 ml.