The PACKOUT™ Bottle Sip Lid is a durable, versatile accessory in the PACKOUT™ modular storage system. It features double-wall vacuum insulation to keep drinks hot or cold all day and is made from 18/8 stainless steel for maximum durability. The lid is dishwasher safe and compatible with all PACKOUT™ bottles and mugs. Its twist-and-lock mechanism allows secure connectivity with other PACKOUT™ components, making it ideal for use on the jobsite or on the go.