The SJ429-40 is a daily thermos mug designed to keep your favorite tea, coffee, or cold drinks at the right temperature for longer. Its 400 ml capacity makes it a practical size for a morning commute or a desk companion, while the steel construction provides the necessary thermal insulation for both hot and chilled beverages. This white mug features an airtight sealing lid to prevent leaks and an ergonomic shape that fits comfortably in your hand. You will find the wide opening particularly useful, as it allows for effortless filling and makes cleaning the interior straightforward after use.