Upgrade a Corporate favorite. The RTIC 18oz Sidekick Bottle is a versatile companion made for the modern professional. Engineered to transition seamlessly from the desk to a lively corporate happy hour, it features a premium ceramic-lined interior that protects the pure flavor of your favorite mixed drinks and beverages. The double-wall vacuum-sealed insulation ensures every pour remains perfectly chilled for hours, while the No Sweat Exterior guarantees a firm, dry grip while networking with colleagues and clients. Additionally, the leak-proof rubber twist cap allows for confident, spill-free transport once the celebration wraps up. To ensure the long-term brilliance of the finish and keep it distinct at every event, hand-washing is recommended.