This half-gallon jug is designed to be personal hydration gear for athletes, avid adventurers, or anyone who needs to stay hydrated throughout the day. Just flip it up to sip, then snap it shut to close. Your water always stays clean and fresh. Stanleya; s double-wall vacuum insulation also keeps it icy cold for hours. Take it where you need to goa; "the rugged handle and built-in fence hook provide portability and convenience. To help you live a sustainable lifestyle, IceFlow Jugs are made in part from recycled plastics sourced from discarded fishing nets, sparing our waters of plastic waste. Stanley prevents nearly 100 pounds of waste from entering our waters per every 1,000 IceFlow Jugs manufactured.