The RTIC® 8oz Happy Hour Flask is a sophisticated partner built for high-level networking and well-earned downtime. Beneath its smooth, Soft Touch Exterior lies a refined Ceramic-Lined Interior designed to preserve the pure taste of premium pours, completely free from metallic interference. When it is time to transition from the office desk to a bustling corporate happy hour, the dependable Leak-Proof Cap keeps your spirits secure in transit. To ensure the long-term finish of this product, hand-washing is recommended.