A box wine (or boxed wine, goon, goon bag, cask wine) is a wine packaged as a bag-in-box. Such packages contain a plastic bladder protected by a box, usually made of corrugated fiberboard. Bag-in-box packaging has some advantages over bottles and is preferred by some wineries because it is far less expensive, lighter and more environmentally friendly than bottled wine and far easier to handle and transport. Boxed wine is typically cheaper than bottled varieties.