The Milwaukee Packout 20oz Tumbler provides the longest temperature retention, keeping drinks hot or cold all day. The Packout 20oz Tumbler features a twist and locks Packout connectivity so you can attach your tumbler to the top of Milwaukee Packout solutions, allowing for secure drink storage on the jobsite. The smooth open & close lid provides quick and easy sliding with gloved hands while keeping dirt and debris away from the tumbler's opening. The Tumbler is dishwasher safe. Milwaukee Packout is the industry's most versatile and durable modular storage system.