The Milwaukee PACKOUT Insulated Bottle with Sip Lid features twist-to-lock PACKOUT Connectivity so you can attach your bottle to the top of PACKOUT solutions, allowing for secure drink storage on the jobsite. The PACKOUT Insulated Bottle with leakproof Sip Lid has double wall vacuum insulation, keeping drinks hot or cold all day. The impact-resistant body is constructed with .8mm thick 18/8 stainless steel to withstand harsh jobsite environments. The dishwasher-safe Insulated Bottle comes with a leakproof sip lid. Milwaukee Packout is the industry's most versatile and durable modular storage system.